4cx800 Output

This Orion has full output on all bands and is a clean rig with only very minor signs of use. Capable of 1. GU74b (called 4CX800 by Svetlana USA) Output capacitance 11 +/- 2 pF Feed-through 0. 09 pF Frequency for maximum ratings 150 MHz Mechanical Maximum overall dimensions: Length 90 mm (3. 6S33S = 6C33C Hi-End Amp Triode Tube $42. Get the best deals on 4cx800 tube when you shop the largest online selection at eBay. I had a Yeasu 2100F, Heathkit Warrior, and Henry 2K3. It is no doubt a powerful and cheap triode. 400mhz 4 w de potencia 13. 20 1100 900. VENDO VALVULA O TUBO RUSO GU74B O 4CX800. Generous power and great dynamics with the proven MRFE6VP61K25N by NXP. output capacitance, at. The KW-1 has a Pi-L output (better filtering and harmonics than a Pi circuit so that was kept) but the input circuit of the KW-1 is untuned using a resistor network while the DX-300 has a tuned input so this Frankenstein uses the input/keying circuit out of a Dx-300 so it has tuned input + now it has a RF sensing keyer meaning it will key. See full list on robkalmeijer. ppt [Compatibility Mode]. INPUT IMPEDANCE: Nominal 50 ohm passive impedance, unbalanced. The output of the 30 dB pad was connected through a 3-way splitter to a step attenuator and conventional receiver, a spectrum analyzer, and an oscilloscope. Gu74b (4cx800) Per Acom 1000-1010, Alfa 99, Alpin 100, Ecc. Output power: 0. You must run at least 1000 WATTS INPUT DC (2000 VDC @ 500 MA) or SSB PEP output power of 700 watts during the entire transmission (QSO). Power output of the new ones same as old, 45 watts in on 20m gives 1950 watts out. SVETLANA POWER TRANSMITTING TETRODE The Svetlana 4CX800A is manufactured in the "Svetlana Electron Devices" (SED) factory in St. With the same shorting wire, on the MAINS PCB touch diode D19 on both sides (it is located at the PCB edge, near the power transistor that is installed on the chassis. I need a chimney like what is described for tthe PI-Network he 4cx800. 09 pF Ua 2 kV ( 4 kV ) Ug2 300 V Ug1 -150 V Ia 0. The A1010 actually runs 1 kW output power and seems to do it conservatively. The HF2500DX manual warns against continuous operation at screen grid currents in excess of 75ma. set of 4CX250's or 4CX350's or even a pair of 4CX800's, that would be great. Sito bandymo nedarysime, laikinai idetas kitas keramikinis droselis , lieka susiderinti 10m diapazona , triju diapazonu Yagi bus pilnai aprupinta vienu kilovato atiduodamu galingumu. com goes on vacation from 11 to 27 April 2018. Microsoft PowerPoint - Pleasures and Pitfalls of Linear Amplifiers 4-8-10 FINAL. Socket Quad Tested Cpu Processor Intel 8mb I7-4790 Core Lga1150 3. CB Radios and CB Radio Parts, and CB Radio AccessoriesOur Speciality. But at the same time, very few comercial builds use the tube. 26 mm Weight 11. 5kW continuous RF output on all commonly used modes and on any authorized amateur frequency from 1. anfossipigeons. Only drawback I can find with the Acom is the 2-1/2 minute warmup requirement. 09 pF Frequency for maximum ratings 150 MHz Mechanical Maximum overall dimensions: Length 90 mm (3. Conversion will work fine with tubes like GU74b, Gi7b, 4CX800, 4CX400, TBL2/500. • ACOM 1000 uses 4CX800 / GU74B Russian tube • Weighs only 50 lbs. Since our first amplifier the MV75 of 1978 c j vacuum tube and solid state amplifiers have defined the state of the art. The main reason is that I felt that no one knows about the supply of GI7Bs in the future. OK, challenge accepted. 3 A Input capacitance 51 +/- 5 pF Output capacitance 11 +/- 2 pF Feed-through 0. That's almost as much power as the L-4B, which was never designed to be a "legal limit" amp. The 4CX800 (GU74B) is a very good valve, cheap when you're looking to amp's with 3-500Z valves in it. So I decided to go for the more common tetrode GU74B/4CX800 which is used in many comercial builds. I would probably want to mount a Bird type, Watt Meter in the face of the amp. 5 oz; 326 gm | 3CX800A7. well it seems to be working fine, maybe the bias was set wrong from the factory anyways only time will tell. Sure it wouldn't be stock, but neither are the old Model Tee's that are Hot Rodded with a tricked out Aircraft type Instrument panel,. The new Continental we installed was a 10kW rig which provided much more margin, and loafed along. Still, it is just not a good idea to leave the equipment on for extended periods when not listening. 20 1100 900. Intel Quad Core I7-4790 Sr1qf 3. The '3' in 3CX800 means triode, the '4' in 4CX800 means tetrode -- so they won't be compatible. Feb 28, 2018 · Ten-Tec Omni VI Plus Model 564 Transceiver My father recently passed away last year and knowing he was a ham and this was his baby he kept in like mew condition. Nassiri RF Sources for XFELs and ERLs FLS2012 March 8, 2012 12 Solid-State RF Amplifiers Solid-state power amplifiers for use at high frequencies employ transistor with wide band-gap semiconductor materials, Si, GaAs. Conversion will work fine with tubes like GU74b, Gi7b, 4CX800, 4CX400, TBL2/500. GU-74B / GU74-B / GU74B / 4CX800A tetrode tube tubes store. This feedback is accomplished by capacitor 0103, which couples some of the plate energy back to the grid circuit. Select your tube type, enter the plate voltage and click a Calculate button. Roc Pro 1000 Schematic. Note: I have many images of the build in progress- It will take some time for me to get this page into shape= I had been looking for a rugged HF linear amplifier with plenty of headroom. Power tetrode 0. You must run at least 1000 WATTS INPUT DC (2000 VDC @ 500 MA) or SSB PEP output power of 700 watts during the entire transmission (QSO). The new Continental we installed was a 10kW rig which provided much more margin, and loafed along. Connect the transmitter output via the line sampler to an RF power meter accurate to within ±5% or better (e. I panicked when they could not recommend a source. PA was a borrowed 4CX800 tetrode with 800 watts output. A old time War Horse, with new machinery. Latest to to hit the shack ! A MINT Henry Tempo 2002. Ensure that the internal autotuner (if fitted) is OFF. it Gmrs amplifier. watts PEP and 750 watts key-down CW output power to 350 MHz, The 3CX800A7 is useful to 600 MHz, • (For typical cav i ty operation see 3CX800A7 HIGH - MU POWER TRIODE 200 350 MHz figures may change page 10) A pulse rated version (3CPX800A7) is also The anode is forced-air cooled for 800 watts of ELECTR I CAL Cathode: Ox ide Coated, Un i potential. Select RTTY, key the transmitter and set the RF output to read 100W on the Bird. this is for educational purposes only. With the plate voltage and milliamp values go to my Tube Bias Calculator. An icon used to represent a menu that can be toggled by interacting with this icon. 1 pf Feedthrough. We also recommend: GU-74B / GU74-B / GU74B / 4CX800A tetrode tube. high is 35 watts dead key to 120 p. • ACOM 1000 uses 4CX800 / GU74B Russian tube • Weighs only 50 lbs. The tubes were installed in less than fifteen minutes. 01 mm Diameter 2. Useful OUtPUt Power Resonant Load Impedance Inter modulation Distortion 2500 300 0. IMD's better than 35dB wrt rated output. 6 100 20 10. Connect the transmitter output via the line sampler to an RF power meter accurate to within ±5% or better (e. I told Henry of the problem, and he recommended that I might try one of two reasonably priced preamplifiers to solve the problem: the Adcom GFP-750 based on a Nelson Pass design, and the Transcendent Sound Grounded Grid designed by Bruce Rosenblit, holder of the Transcendent Patent of the Output-Transformer Less tube amplification output stage. The new Continental we installed was a 10kW rig which provided much more margin, and loafed along. GU74b (called 4CX800 by Svetlana USA) Uh 12. It is no doubt a powerful and cheap triode. 7 MHz better than 50dB. 400mhz - control de frecuencia: p. Latest to to hit the shack ! A MINT Henry Tempo 2002. 4cx800 Output - tixe. GU74b (called 4CX800 by Svetlana USA) - N. QSK - very quiet vacuum relay. 3 kg cpi | cx 5000 a /8170. Ensure that the internal autotuner (if fitted) is OFF. PA was a borrowed 4CX800 tetrode with 800 watts output. 10 W 20 W 30 W 40 W 50 W 60 W 70 W 80 W : 170 W 340 W 510 W 680 W 850 W 1020 W 1180 W 1350 W : Input SSB Signal: 25% of full 1. 1 pf Cooling Forced Air Base Special Coaxial Air Socket SK-300A/SK-360 Air Chimney SK-306/SK-356 Boiler ---Length 9. Output transformer for large public address valve amplifier. The 4CX800 (GU74B) is a very good valve, cheap when you're looking to amp's with 3-500Z valves in it. it Gmrs amplifier. Souhrnné informace o Tata Cara Tawasul Ilmu Hikmah. Power tetrode 0. With the plate voltage and milliamp values go to my Tube Bias Calculator. 1x2sc2879,4x2sc2879. 3:1 input VSWR. Power: 30 Watts input = 2000 Watts output dalle 3cx800 alle 4cx800 o GU74 per esempio. Get the best deals on 4cx800 tube when you shop the largest online selection at eBay. - the HV output J3; - the wire-wound resistor R12 on its both sides; - the four HV diodes on their both sides. The Alpin 100MKII is a rugged HF+ 6m linear amplifier that weighs in at 26kg. 0 6,500 750 2. Output power is 750 W at 24. DX Engineering GU74B / 4CX800A Ceramic Power Tetrodes are high-performance ceramic / metal tetrodes with a plate dissipation rating of 800 watts. With the same shorting wire, on the MAINS PCB touch diode D19 on both sides (it is located at the PCB edge, near the power transistor that is installed on the chassis. Harmonic Output: <-60 dBc. Alpha 99 amplifier. The entire reason for my question is my Acom 1000 amp (4CX800) would need about 55 watts drive to produce ~950 watts, I was very surprised the KPA1500 needed so little drive power. it Gmrs amplifier. I was going to sell it as/is for a good price. Intel Quad Core I7-4790 Sr1qf 3. Of course, many amps including Alphas have that same requirement. 10 W 20 W 30 W 40 W 50 W 60 W 70 W 80 W : 170 W 340 W 510 W 680 W 850 W 1020 W 1180 W 1350 W : Input SSB Signal: 25% of full 1. GU-74B / GU74-B / GU74B / 4CX800A tetrode tube tubes store. Brand | Eimac/CPI Description | The 4CX35000C/8349 is a(n) fac tetrode manufactured by CPI-Eimac. The A1010 actually runs 1 kW output power and seems to do it conservatively. Signal reports, call signs, Name and Number must be submitted to WA4DB (Dave) using the official form (link above). Title: RCA 811 tube data sheet Created Date: 11/18/1999 11:54:00 PM. 26 mm Weight 11. This feedback is accomplished by capacitor 0103, which couples some of the plate energy back to the grid circuit. 7 pf Capacitance Grounded Grid Input 56. Still, it is just not a good idea to leave the equipment on for extended periods when not listening. Capable of 1. emisora de banda ciudadana cb 27 mhz. The first commercially made amps using the "new Svetlana 4CX800" were actually using GU74's. The ACOM 2000A is the first teur HF 500 WATT PA by SM0VPO. New gu-74B / 4CX800 russian power tetrode in box; New hexacon 945 hexacon solder pot, mini, 500°f; New ieee gpib interface card ; New ingersoll-rand 15 hp rotary air compressor * tas * New led display 2 lines; New lot of 6 ufa petroleum filters 50 psi 18-25 gpm ; New miller digital elite welding helmet joker 235041 ; New miller syncrowave 200. 3CX800A7 amps are at the very bottom of his current product line and he mostly builds BIG amps with 3CX3000A7s and larger tubes in the 5kW to 20kW range. Tubes: Two Svetlana 4CX800 ceramic-metal tetrodes. Has factory added auxiliary fan on a switch. The Alpin 100MKII is a rugged HF+ 6m linear amplifier that weighs in at 26kg. 06 900 1 900 Class AB MAXIMUM RATINGS DC PLATE VOLTAGE DC SCREEN VOLTAGE DC PLATE CURRENT PLATE DISSIPATION SCREEN DISSIPATION CONTROL GRID DISSIPATION 3000 400. That's almost as much power as the L-4B, which was never designed to be a "legal limit" amp. I would probably want to mount a Bird type, Watt Meter in the face of the amp. 00 New---- Used; Sleeve of 5 SYLVANIA Jan 6z4/84 Tubes. Very clean and works 100% on all bands. K7ORK Rating: 2009-01-07; Nikmatvey for 91b replacement tubes Time Owned: 0 to 3 months. Harmonic Output: <-60 dBc. Although there are several “workhorse” amplifiers in the amateur market that use 4CX800 ceramic tetrodes, the Alpha 8100. Two 4CX800 Svetlana tetrodes. New production tubes need 24-48 hours. Output power is 1,2 Kw with 62 watts input. Verze programu. TenTec has even discontinued their Titan III amp that used this tube. The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service Find GU74B / 4CX800A Ceramic Power Tetrodes DXE-GU74B and get Free Standard Shipping on orders over $99 at DX. Massive Hipersil tape-wound transformer. emisora de banda ciudadana cb 27 mhz. VENDO VALVULA O TUBO RUSO GU74B O 4CX800. If it still has no output, you have other problems, Check all connections. 1 2SC2879 driving 4 x 2SC2879 HG:Amp Draw(maximum) 90 Class C SSB Delay NoPre-amp Driver Required MaximumRecommended Dead Key Output 100w TypicalModulated Power Output (RMS) 300-500 WattsTypical Modulated Power Output (PEP) 600-1000 Watts. The first Svetlana 4CX800 data sheet stated that this tube is the same as the GU74 widely used in the Eastern Europe. I told Henry of the problem, and he recommended that I might try one of two reasonably priced preamplifiers to solve the problem: the Adcom GFP-750 based on a Nelson Pass design, and the Transcendent Sound Grounded Grid designed by Bruce Rosenblit, holder of the Transcendent Patent of the Output-Transformer Less tube amplification output stage. So I decided to go for the more common tetrode GU74B/4CX800 which is used in many comercial builds. Maximum Load VSWR: 2:1 at full rated power output. Ahorra con nuestra opción de envío gratis. 1 pf Feedthrough. Some form of negative feedback is usually seen in well designed amplifiers to reduce distortion lower the gain and stabilize the system. 40 canales am / fm frecuencia: 26. The two 4CX800's take as little as 35 watts up to about 60 watts (per Icom watt meter in radio). 900 1 500 12 VOLTS VOLTS AMP WATTS WATTS WATT 2750 300 0. > same OUTPUT as a stock SB-200 or similar amp that can be bought for. 8MHz to 54MHz. The final tubes in the Collins were Eimac, but mostly Econco rebuilds. La mayor selección de Tubos para radios a los precios más asequibles está en eBay. Harmonic suppression - 1. 400mhz 4 w de potencia 13. Maximum Load VSWR: 2:1 at full rated power output. Get the best deals on 4cx800 tube when you shop the largest online selection at eBay. 0 6,500 750 2. Free shipping on many items | Browse your favorite brands | affordable prices. 5V, 28MHz Characteristics Output Power : Po=60W PEP. New production tubes need 24-48 hours. I ordered one from Dr. 400mhz - control de frecuencia: p. 8 mm Diameter 4. com goes on vacation from 11 to 27 April 2018. 4cx800 Output - tixe. AL-1200 -- 1. 7 MHz Power output: 1500 Watts minimum 3rd Order IM: 33807: 9. Output transformer center tap points at center and power tube plates at bottom center. 0 c RF amplifier plate modulated 5,500 2. It should also not be capable of producing spurious signals into the CB or 10m amateur radio band, or any such emission over 200w, nor be capable of the same within the 11m Shortwave radio band from. I need a chimney like what is described for tthe PI-Network he 4cx800. Output 11 ±F 2p Feedback 0. 1 pf Feedthrough. 900 1 500 12 VOLTS VOLTS AMP WATTS WATTS WATT 2750 300 0. So I decided to go for the more common tetrode GU74B/4CX800 which is used in many comercial builds. GU74b (called 4CX800 by Svetlana USA) Uh 12. a Bird 43) terminated in an accurate 50 ohm resistive load. it Gi7bt Gi7bt. 20 1100 900. Gs35 linear amplifier. It is no doubt a powerful and cheap triode. The Alpin 100 is a rugged HF + 50 MHz linear amplifier that weighs in at 25kg. Output power : Measured with a Bird Power Meter, Model 43, PEP. • ACOM 1000 uses 4CX800 / GU74B Russian tube • Weighs only 50 lbs. All harmonics and spurious emissions are at least 47 dB below peak fundamental output. Harris RF110-A Amplifier ancillary kit. Full 100w output. 6ghz 8mb Socket Lga1150 Cpu Processor Tested. Free shipping on many items | Browse your favorite brands | affordable prices. I read the 4CX800A/GU74B tube is no longer in production. Acom 1000 hf linear amplifier price.  Compatibility with popular amateur transceivers. However, once the buyer recognized my voice, he decide. Get the best deals on 4cx800 tube when you shop the largest online selection at eBay. The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service Find GU74B / 4CX800A Ceramic Power Tetrodes DXE-GU74B and get Free Standard Shipping on orders over $99 at DX. • ACOM 1000 uses 4CX800 / GU74B Russian tube • Weighs only 50 lbs. After the ARRL contest in 1997 and only 22 QSOs we dismantled the antenna and put up a big 10m antenna instead. 43 shipping. Output is 1500 watts on all bands including WARC. These ceramic tubes are operated in Class AB 1 and reliably provide 1500 W output with approximately 50 to 60 W of drive power. linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. GU74b (called 4CX800 by Svetlana USA) Uh 12. 05 pf Capacitance N/A Input N/A Output N/A Feedthrough N/A Cooling Forced Air Base 11 Pin Air Socket SK-1900 Air Chimney SK-1906 Boiler N/A Length 2. 4cx800 Output - tixe. Compact HF linear amplifier with more than 700W of output power on all amateur bands from 1. See full list on robkalmeijer. 4CX35000C/8349. SVETLANA POWER TRANSMITTING TETRODE The Svetlana 4CX800A is manufactured in the "Svetlana Electron Devices" (SED) factory in St. Tetrode tubes POWER / OUTPUT GERMANIUM TRANSISTOR. it 4cx800 Output. ) Operating position Any Cooling Forced air Maximum operating envelope temperature 200°C Recommended socket Svetlana SK-1A Recommended anode connector. Acom 1000 hf linear amplifier price. When I tune my Alpha 76 to 1500 watts output, the PA current meter is off the scale. 35w in produces 1500w output. Nearly everyone else did too (ACOM, Alpha, Ameritron, QRO, etc. The most important are the grid and screen current and their dissipated power and the cathode current also. 5 KHz Modulation on / off Ratio 1:3, Interruptions: 30 Hz: Output limited by Software: RTTY / CW / SSB: 800 W / 1000 W / 1400 W: Harmonic Output: 50 dB. The '3' in 3CX800 means triode, the '4' in 4CX800 means tetrode -- so they won't be compatible. NOS tubes have an excellent reputation to use. The Alpin 100 is a rugged HF + 50 MHz linear amplifier that weighs in at 25kg. Microsoft PowerPoint - Pleasures and Pitfalls of Linear Amplifiers 4-8-10 FINAL. a Bird 43) terminated in an accurate 50 ohm resistive load. Ameritron produces the best quality HF Amplifiers in the world. ) Diameter 72 mm (2. 5 pf Feedthrough 0. That's almost as much power as the L-4B, which was never designed to be a "legal limit" amp. Ensure that the internal autotuner (if fitted) is OFF. GU-74b amplifier tetrode tube, 4cx800 amplifier tetrode tube. 144 MHz Amplifier Schematic Plate Line Of The 144 MHz Amplifier With GU74b Cavity HV Supply Screen Grid (g2) and Control Grid (g1) Supply Bottom View Front of 144MHz Amplifier 750W Output with 15W Input. I panicked when they could not recommend a source. high is 35 watts dead key to 120 p. around a matched pair of rugged 4CX800 (GU74b) tetrodes from Svetlana. Output Impedance: 50 ohms unbalanced. The 4CX800 (GU74B) is a very good valve, cheap when you're looking to amp's with 3-500Z valves in it. Output Power : Po=100WPEP Power Gain : Gp=13dB Collector Efficiency : '7 C = 35% (Min. Henry amplifiers. The first commercially made amps using the "new Svetlana 4CX800" were actually using GU74's. Verze programu. The entire reason for my question is my Acom 1000 amp (4CX800) would need about 55 watts drive to produce ~950 watts, I was very surprised the KPA1500 needed so little drive power. - the HV output J3; - the wire-wound resistor R12 on its both sides; - the four HV diodes on their both sides. Anybody considering the purchase of an amplifier are faced with a number of choices and directions to go in, and probably the most fundamental is whether to choose solid state or. Massive Hipersil tape-wound transformer. 1 pf Feedthrough. It should also not be capable of producing spurious signals into the CB or 10m amateur radio band, or any such emission over 200w, nor be capable of the same within the 11m Shortwave radio band from. Nearly everyone else did too (ACOM, Alpha, Ameritron, QRO, etc. watts PEP and 750 watts key-down CW output power to 350 MHz, The 3CX800A7 is useful to 600 MHz, • (For typical cav i ty operation see 3CX800A7 HIGH - MU POWER TRIODE 200 350 MHz figures may change page 10) A pulse rated version (3CPX800A7) is also The anode is forced-air cooled for 800 watts of ELECTR I CAL Cathode: Ox ide Coated, Un i potential. Find many great new & used options and get the best deals for Eimac 3CX800A7 Power Triode in Original Container at the best online prices at eBay! Free shipping for many products!. I guess due to the fact that the tube, which was visually ok, was actually broken. Hf amplifier Hf amplifier. 5 pf Feedthrough 0. Maximum Load VSWR: 2:1 at full rated power output. 35w in produces 1500w output. ) Operating position Any Cooling Forced air Maximum operating envelope temperature 200°C Recommended socket Svetlana SK-1A Recommended anode connector. 10 W 20 W 30 W 40 W 50 W 60 W 70 W 80 W : 170 W 340 W 510 W 680 W 850 W 1020 W 1180 W 1350 W : Input SSB Signal: 25% of full 1. no necesita licencia. Useful OUtPUt Power Resonant Load Impedance Inter modulation Distortion 2500 300 0. This is a eimac 3CX5000a7 with 3 AMP transformer at 5700 volts output. But at the same time, very few comercial builds use the tube. set of 4CX250's or 4CX350's or even a pair of 4CX800's, that would be great. class of type of service plate plate plate screen plate Drive Output Operation Voltage current Voltage Voltage current power power (Volts) (amps) (Volts) (Volts) (amps) (Watts) (kiloWatts) c RF amplifier 7,500 3. The HF2500DX manual warns against continuous operation at screen grid currents in excess of 75ma. Output transformer for large public address valve amplifier. Ameritron produces the best quality HF Amplifiers in the world. • ACOM 1000 uses 4CX800 / GU74B Russian tube • Weighs only 50 lbs. Power output of the new ones same as old, 45 watts in on 20m gives 1950 watts out. 5 A Pa 600 W. GU74b (called 4CX800 by Svetlana USA) Output capacitance 11 +/- 2 pF Feed-through 0. 4cx800 Output tixe. Very clean and works 100% on all bands. Gmrs amplifier Gmrs amplifier. Verze programu. After the ARRL contest in 1997 and only 22 QSOs we dismantled the antenna and put up a big 10m antenna instead. Le prima costa circa 1000€ l'una, la seconda, anni fà con le NOS 50-150. 5 pf Feedthrough 0. a estrenar nueva. -----TH-75 VHF/UHF handheld transceiver Includes the following: - BC-11 Charger. watts PEP and 750 watts key-down CW output power to 350 MHz, The 3CX800A7 is useful to 600 MHz, • (For typical cav i ty operation see 3CX800A7 HIGH - MU POWER TRIODE 200 350 MHz figures may change page 10) A pulse rated version (3CPX800A7) is also The anode is forced-air cooled for 800 watts of ELECTR I CAL Cathode: Ox ide Coated, Un i potential. 7 MHz better than 50dB. Dimensions, including amplifier, power supply, tuner and controller, are only 350(H) x 269(W) x 378(D)mm* And, because the controller is detachable, the IC-PW1 can be installed almost anywhere in your shack. anfossipigeons. 900 1 500 12 VOLTS VOLTS AMP WATTS WATTS WATT 2750 300 0. GU74b (called 4CX800 by Svetlana USA) Uh 12. 28 Mhz only with modification by licensed amateurs. SPECIFICATIONS Frequency coverage: All amateur frequencies from 1. 3CX800A7 amps are at the very bottom of his current product line and he mostly builds BIG amps with 3CX3000A7s and larger tubes in the 5kW to 20kW range. Select your tube type, enter the plate voltage and click a Calculate button. DX Engineering GU74B / 4CX800A Ceramic Power Tetrodes are high-performance ceramic / metal tetrodes with a plate dissipation rating of 800 watts. The 4CX15000A/8281 is primarily used in broadcast applications. 8 mm Diameter 4. output power - just a fairly gross report of what I was seeing. $3,300 for amp and spare set of tubes. 00 New---- Used; Svetlana El34 Matched Power Tubes Hard/blue. SVETLANA Output beam tetrode. CB Radios and CB Radio Parts, and CB Radio AccessoriesOur Speciality. The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service Find GU74B / 4CX800A Ceramic Power Tetrodes DXE-GU74B and get Free Standard Shipping on orders over $99 at DX. This feedback is accomplished by capacitor 0103, which couples some of the plate energy back to the grid circuit. 4 mm Weight 9. Petersburg, Russia. 7 MHz with no time limit. The output of the 30 dB pad was connected through a 3-way splitter to a step attenuator and conventional receiver, a spectrum analyzer, and an oscilloscope. Latest to to hit the shack ! A MINT Henry Tempo 2002. “A fixed amount of r-f negative feedback, from the output circuit of the power amplifier to the input of the power amplifier, produces a high degree of linearity of the amplified signal. ) Operating position Any Cooling Forced air Maximum operating envelope temperature 200°C Recommended socket Svetlana SK-1A Recommended anode connector. am/fm, 200 w ssb * current drain:. 20 1100 900. Alex in Ukraine. am/fm, 200 w ssb * current drain:. 7 MHz Power output: 1500 Watts minimum 3rd Order IM: 33807: 9. 01 mm Diameter 2. 4CX800A/GU74B NOS Tube. Per basic amplifier theory no tube will be as efficient in class A --. Offered tubes (Soviet marks as GU74B) are made in the USSR at 1980-92 on this Svetlana factory, are full analogue and have the best parameters rather modern Sv. 1x2sc2879,4x2sc2879. 4CX15000A/8281 - Tetrode - Electron-Tubes-Vacuum-Devices Save www. There is barely room for a pair of 3CX800s in the 76 and even less space in the 78 and 374A. The '3' in 3CX800 means triode, the '4' in 4CX800 means tetrode -- so they won't be compatible. 5 5,000 500 1. Gmrs amplifier Gmrs amplifier. It is no doubt a powerful and cheap triode. SVETLANA POWER TRANSMITTING TETRODE The Svetlana 4CX800A is manufactured in the "Svetlana Electron Devices" (SED) factory in St. 50-54 MHz better than 60dB. After the ARRL contest in 1997 and only 22 QSOs we dismantled the antenna and put up a big 10m antenna instead. QSK - very quiet vacuum relay. GU74B=4CX800. Ahorra con nuestra opción de envío gratis. He isn't specific about how long for output tubes, but suggests they take less time to burn in. Alpha informed me that the AC trip problem with my 91b (purchased 1997) was caused by the GU74B (4CX800A) tubes going bad. It's a resistive. DX Engineering GU74B / 4CX800A Ceramic Power Tetrodes are high-performance ceramic / metal tetrodes with a plate dissipation rating of 800 watts. Power output on AM low is 6 watts dead key to 60 p. ) Diameter 72 mm (2. 06 900 1 900 Class AB MAXIMUM RATINGS DC PLATE VOLTAGE DC SCREEN VOLTAGE DC PLATE CURRENT PLATE DISSIPATION SCREEN DISSIPATION CONTROL GRID DISSIPATION 3000 400. The Alpin 100 is a rugged HF + 50 MHz linear amplifier that weighs in at 25kg. I read the 4CX800A/GU74B tube is no longer in production. Gs35b tube Gs35b tube. * Frequency coverage: All amateur bands 1. • ACOM 1000 uses 4CX800 / GU74B Russian tube • Weighs only 50 lbs. Gs35 linear amplifier. 31€ 29d Dettagli. Tetrode tubes POWER / OUTPUT GERMANIUM TRANSISTOR. GU74B=4CX800. Reid, IIRC, the Collins was being operated at or slightly over its maximum output rating. emisora de banda ciudadana cb 27 mhz. Acom 1000 hf linear amplifier price. 4cx800 Output tixe. Verze programu. However, once the buyer recognized my voice, he decide. Power tetrode 0. PA was a borrowed 4CX800 tetrode with 800 watts output. Tube - a single 4CX800 (GU74b) grounded cathode, grid-driven, 1000W output all bands. > same OUTPUT as a stock SB-200 or similar amp that can be bought for. 400mhz 4 w de potencia 13. The tubes were installed in less than fifteen minutes. output power - just a fairly gross report of what I was seeing. The NEW ACOM A700S Amplifier! Compact HF linear amplifier with more than 700W of output power on all amateur bands from 1. Gmrs amplifier - amm. 00 Yaesu FT-767gx, near mint condition. Ordering a matched pair of GU74b / 4CX800. 4CX35000C/8349. 35w in produces 1500w output. It is also important to note the Russian 4CX800 is larger than the 3CX800. 8MHz to 54MHz. The most important are the grid and screen current and their dissipated power and the cathode current also. ppt [Compatibility Mode]. But at the same time, very few comercial builds use the tube. it 4cx800 Output. Note: I have many images of the build in progress- It will take some time for me to get this page into shape= I had been looking for a rugged HF linear amplifier with plenty of headroom. - the HV output J3; - the wire-wound resistor R12 on its both sides; - the four HV diodes on their both sides. $3,300 for amp and spare set of tubes. Output 11 ±F 2p Feedback 0. 4:1 or less. Gs35b tube Gs35b tube. Reziume , "Poliamyde" vienai 4CX800 A butu tinkamas, butina pusti su turbina, nes silumos dezeje perteklius. am/fm, 200 w ssb * current drain:. 5 A Pa 600 W. PA was a borrowed 4CX800 tetrode with 800 watts output. Sure it wouldn't be stock, but neither are the old Model Tee's that are Hot Rodded with a tricked out Aircraft type Instrument panel,. Output Power : Po=100WPEP Power Gain : Gp=13dB Collector Efficiency : '7 C = 35% (Min. - tolerancia de frecuencia: ± 0,005% - temperatura: -20 ° / + 55 ° c - tensión. Output is 1500 watts on all bands including WARC. ppt [Compatibility Mode]. Jan Garavaglia recently made some derogatory anti-male statements in an interview (the typical feminist lies of course) about her "noticing" of men, predominantly men, doing stupid things. OUTPUT IMPEDANCE: Nominal 50 ohm passive impedance, unbalanced. This Orion has full output on all bands and is a clean rig with only very minor signs of use. , @ 110% modulation, ssb is 130 p. 900 1 500 12 VOLTS VOLTS AMP WATTS WATTS WATT 2750 300 0. Free shipping on many items | Browse your favorite brands | affordable prices. Tube Amp Capacitor Replacement. Output power of the Alpha91; Unfortunately, this test didn't work at all and I couldn't get out any power of the amplifier. CB Radios and CB Radio Parts, and CB Radio AccessoriesOur Speciality. 4cx800 Output tixe. 8 mm Diameter 4. AL-1200 -- 1. Brand | Eimac/CPI Description | The 4CX35000C/8349 is a(n) fac tetrode manufactured by CPI-Eimac. Note the power tube plates (pin 3) and the power tube Cathode Resistor. Connect the transmitter output via the line sampler to an RF power meter accurate to within ±5% or better (e. 00 Yaesu FT-767gx, near mint condition. Signal reports, call signs, Name and Number must be submitted to WA4DB (Dave) using the official form (link above). 4-year Alpha Radio Products. GU74b (called 4CX800 by Svetlana USA) Output capacitance 11 +/- 2 pF Feed-through 0. Ordering a matched pair of GU74b / 4CX800. Select RTTY, key the transmitter and set the RF output to read 100W on the Bird. I would probably want to mount a Bird type, Watt Meter in the face of the amp. These tubes are still produced, but their cost is very high. I need a chimney like what is described for tthe PI-Network he 4cx800. high is 35 watts dead key to 120 p. 09 pF Ua 2 kV ( 4 kV ) Ug2 300 V Ug1 -150 V Ia 0. • 160 thru 6 meters / 1000 Watts output @ 230 VAC. New gu-74B / 4CX800 russian power tetrode in box; New hexacon 945 hexacon solder pot, mini, 500°f; New ieee gpib interface card ; New ingersoll-rand 15 hp rotary air compressor * tas * New led display 2 lines; New lot of 6 ufa petroleum filters 50 psi 18-25 gpm ; New miller digital elite welding helmet joker 235041 ; New miller syncrowave 200. Output 11 ±F 2p Feedback 0. Useful OUtPUt Power Resonant Load Impedance Inter modulation Distortion 2500 300 0. Anybody considering the purchase of an amplifier are faced with a number of choices and directions to go in, and probably the most fundamental is whether to choose solid state or. I guess due to the fact that the tube, which was visually ok, was actually broken. 10 W 20 W 30 W 40 W 50 W 60 W 70 W 80 W : 170 W 340 W 510 W 680 W 850 W 1020 W 1180 W 1350 W : Input SSB Signal: 25% of full 1. Feb 28, 2018 · Ten-Tec Omni VI Plus Model 564 Transceiver My father recently passed away last year and knowing he was a ham and this was his baby he kept in like mew condition. However, once the buyer recognized my voice, he decide. 1 piece New! silver USSR Tube Socket GU 74 B = 4CX800 = 4CX800A tetrode NOS. no necesita licencia. ACOM 2000 2001: Short wave linear amplifier 1. 4:1 or less. ) Operating position Any Cooling Forced air Maximum operating envelope temperature 200°C Recommended socket Svetlana SK-1A Recommended anode connector. Output tetrode. The main reason is that I felt that no one knows about the supply of GI7Bs in the future. Full CW break-in (QSK) and all digital modes. 7 MHz Power output: 1500 Watts minimum 3rd Order IM: 33807: 9. The most important are the grid and screen current and their dissipated power and the cathode current also. What's up with that? The fix for that is a simple meter doubler circuit. 00: 4CX800 (ГУ-74Б) с. With the plate voltage and milliamp values go to my Tube Bias Calculator. 2 Röhren 4CX800 oder GU-74B * RF output: 1500-2000 W keyed carrier or SSB - no time limit. The A1010 actually runs 1 kW output power and seems to do it conservatively. 10 W 20 W 30 W 40 W 50 W 60 W 70 W 80 W : 170 W 340 W 510 W 680 W 850 W 1020 W 1180 W 1350 W : Input SSB Signal: 25% of full 1. 1 pf Cooling Forced Air Base Special Coaxial Air Socket SK-300A/SK-360 Air Chimney SK-306/SK-356 Boiler ---Length 9. La mayor selección de Tubos para radios a los precios más asequibles está en eBay. 20 1100 900. Latest to to hit the shack ! A MINT Henry Tempo 2002. Output transformer center tap points at center and power tube plates at bottom center. GU74b (called 4CX800 by Svetlana USA) - N. The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service Find GU74B / 4CX800A Ceramic Power Tetrodes DXE-GU74B and get Free Standard Shipping on orders over $99 at DX. Although there are several “workhorse” amplifiers in the amateur market that use 4CX800 ceramic tetrodes, the Alpha 8100. 5 A Pa 600 W. 8 mm Diameter 4. The most important are the grid and screen current and their dissipated power and the cathode current also. 4cx800 Output - tixe. Power output on AM low is 6 watts dead key to 60 p. 7 MHz with no time limit. I would probably want to mount a Bird type, Watt Meter in the face of the amp. 0 6,500 750 2. SPRAY SERVICE PROVIDER CONCEPT IN KENYA By Agrochemicals Association of Kenya (AAK) / July 7, 2020 A Spray service Provider is a farmer who has received specialized training on the responsible use and application of pesticides. The final tubes in the Collins were Eimac, but mostly Econco rebuilds. Find many great new & used options and get the best deals for Eimac 3CX800A7 Power Triode in Original Container at the best online prices at eBay! Free shipping for many products!. set of 4CX250's or 4CX350's or even a pair of 4CX800's, that would be great. - the HV output J3; - the wire-wound resistor R12 on its both sides; - the four HV diodes on their both sides. high is 35 watts dead key to 120 p. This Orion has full output on all bands and is a clean rig with only very minor signs of use. 0 c RF amplifier plate modulated 5,500 2. Intel Quad Core I7-4790 Sr1qf 3. Ordering a matched pair of GU74b / 4CX800. class of type of service plate plate plate screen plate Drive Output Operation Voltage current Voltage Voltage current power power (Volts) (amps) (Volts) (Volts) (amps) (Watts) (kiloWatts) c RF amplifier 7,500 3. 7 MHz better than 50dB. Bandswitching takes about 15 seconds as I have a band table taped to the upper left corner of the amp. ) Operating position Any Cooling Forced air Maximum operating envelope temperature 200°C Recommended socket Svetlana SK-1A Recommended anode connector. New! Fresh! Good Price GU74B = 4CX800 = 4CX800A tetrode SVETLANA NOS! NIB! £191. I would probably want to mount a Bird type, Watt Meter in the face of the amp. The 5F6A is a Class AB Fixed Bias amp so 70% of max dissipation is your safe limit. 5kW continuous RF output on all commonly used modes and on any authorized amateur frequency from 1. Broadband input circuit for solid-state radios - less than 1. Output power : Measured with a Bird Power Meter, Model 43, PEP. Socket Quad Tested Cpu Processor Intel 8mb I7-4790 Core Lga1150 3. 00 New---- Used; Svetlana El34 Matched Power Tubes Hard/blue. Bandswitching takes about 15 seconds as I have a band table taped to the upper left corner of the amp. The main reason is that I felt that no one knows about the supply of GI7Bs in the future. A old time War Horse, with new machinery. 4 mm Weight 9. Henry amplifiers. Svetlana 4CX800 / GU-74B / GU74B. The ACOM 2000A is the first teur HF 500 WATT PA by SM0VPO. Output power : Measured with a Bird Power Meter, Model 43, PEP. Cathode harmonics across resistor R4: Harmonics at exciter are negligible thanks to low-pass filtering by the tuned input: It is important to use a low-pass input matching network that presents a low impedance for harmonics at the tube cathode. anfossipigeons. , @ 110% modulation, ssb is 130 p. Intel Quad Core I7-4790 Sr1qf 3. I would probably want to mount a Bird type, Watt Meter in the face of the amp. This is a eimac 3CX5000a7 with 3 AMP transformer at 5700 volts output. emisora de banda ciudadana cb 27 mhz. I just wasn’t getting the dynamic range out …. 0 pf Output 21. 00 Yaesu FT-767gx, near mint condition. That's almost as much power as the L-4B, which was never designed to be a "legal limit" amp. I have no idea of the potential for high-fidelity audio of either tube, but either one should make fine audio amplifiers otherwise. The entire reason for my question is my Acom 1000 amp (4CX800) would need about 55 watts drive to produce ~950 watts, I was very surprised the KPA1500 needed so little drive power. Useful OUtPUt Power Resonant Load Impedance Inter modulation Distortion 2500 300 0. The A1010 actually runs 1 kW output power and seems to do it conservatively. Offered tubes (Soviet marks as GU74B) are made in the USSR at 1980-92 on this Svetlana factory, are full analogue and have the best parameters rather modern Sv. I just wasn’t getting the dynamic range out …. - the HV output J3; - the wire-wound resistor R12 on its both sides; - the four HV diodes on their both sides. am/fm, 200 w ssb * current drain:. 3CX800A7 amps are at the very bottom of his current product line and he mostly builds BIG amps with 3CX3000A7s and larger tubes in the 5kW to 20kW range. • ACOM 1000 uses 4CX800 / GU74B Russian tube • Weighs only 50 lbs. 8 - 30 MHz, remote control via serial line, automatic tune-up, two 4CX800 tubes, over 2000 W PEP output, built-in 230 VAC power supply. 4CX800A/GU74B NOS Tube. Useful OUtPUt Power Resonant Load Impedance Inter modulation Distortion 2500 300 0. 2 Röhren 4CX800 oder GU-74B * RF output: 1500-2000 W keyed carrier or SSB - no time limit. 6 2,200 --- 0. no necesita licencia. The NEW ACOM A700S Amplifier! Compact HF linear amplifier with more than 700W of output power on all amateur bands from 1. Reid, IIRC, the Collins was being operated at or slightly over its maximum output rating. All harmonics and spurious emissions are at least 47 dB below peak fundamental output. 3 Amperes 110 MHz 200 20 0. My conversion is similar to the 4cx800 article except I am using a 8877. The output should be no more than 200W PEP due to legal restrictions in the 10m band. Output power: 0. Feb 28, 2018 · Ten-Tec Omni VI Plus Model 564 Transceiver My father recently passed away last year and knowing he was a ham and this was his baby he kept in like mew condition. The price is FIRM. Anybody considering the purchase of an amplifier are faced with a number of choices and directions to go in, and probably the most fundamental is whether to choose solid state or. SVETLANA POWER TRANSMITTING TETRODE The Svetlana 4CX800A is manufactured in the "Svetlana Electron Devices" (SED) factory in St. [email protected] INPUT IMPEDANCE: Nominal 50 ohm passive impedance, unbalanced. Get fast, Free Standard Shipping on orders over $99 from DX Engineering -- no shipping, handling, or rural fees! Exclusions apply. Intermodulation Distortion: 30 dB below rated output. AL-1200 -- 1. IMD's better than 35dB wrt rated output. Tubes: Two Svetlana 4CX800 ceramic-metal tetrodes. 1 piece New! silver USSR Tube Socket GU 74 B = 4CX800 = 4CX800A tetrode NOS. The new Continental we installed was a 10kW rig which provided much more margin, and loafed along. ) Net weight 550 g (1. It should also not be capable of producing spurious signals into the CB or 10m amateur radio band, or any such emission over 200w, nor be capable of the same within the 11m Shortwave radio band from. 4CX35000C/8349. Low hours, second owner, MINT condition and works flawless. Useful OUtPUt Power Resonant Load Impedance Inter modulation Distortion 2500 300 0. The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service Find GU74B / 4CX800A Ceramic Power Tetrodes DXE-GU74B and get Free Standard Shipping on orders over $99 at DX. Fully automated work with the ACOM 04AT antenna tuner. Gu74b (4cx800) Per Acom 1000-1010, Alfa 99, Alpin 100, Ecc. I need a chimney like what is described for tthe PI-Network he 4cx800. GU74b (called 4CX800 by Svetlana USA) - N. Signal reports, call signs, Name and Number must be submitted to WA4DB (Dave) using the official form (link above). Runs cool, quiet, tunes up very smooth. New gu-74B / 4CX800 russian power tetrode in box; New hexacon 945 hexacon solder pot, mini, 500°f; New ieee gpib interface card ; New ingersoll-rand 15 hp rotary air compressor * tas * New led display 2 lines; New lot of 6 ufa petroleum filters 50 psi 18-25 gpm ; New miller digital elite welding helmet joker 235041 ; New miller syncrowave 200. With the same shorting wire, on the MAINS PCB touch diode D19 on both sides (it is located at the PCB edge, near the power transistor that is installed on the chassis. Turn on the unit again and listen to it, if the output increases, you are connected correctly. The testing above was done with 15% duty cycle side band yammer, yammer, yammer in mind. Ensure that the internal autotuner (if fitted) is OFF. ) Diameter 72 mm (2. 7 pf Capacitance Grounded Grid Input 56. Suitable for all amateur modes thanks to an all-copper, high efficiency heatsink. class of type of service plate plate plate screen plate Drive Output Operation Voltage current Voltage Voltage current power power (Volts) (amps) (Volts) (Volts) (amps) (Watts) (kiloWatts) aB2 cathode Driven RF linear amplifier 2,250 0. 1 pf Feedthrough. 7 MHz with no time limit. com goes on vacation from 11 to 27 April 2018. 6S33S = 6C33C Hi-End Amp Triode Tube $42. The receiver used a 300 Hz eight-pole filter, the spectrum analyzer used a 50 Hz filter, and the scope was triggered from an external keying signal. 31€ 29d Dettagli. Some form of negative feedback is usually seen in well designed amplifiers to reduce distortion lower the gain and stabilize the system. The tubes were installed in less than fifteen minutes. The 4CX35000C/8349 is primarily used in broadcast applications. Fatboy 4x1446 (H/D) Amp specs: Motorola SD-1446 Pills Extra Large Heat Sink Solid Aluminum Chassis On/Off Switch Internal Fan Higher Voltage Specs: [email protected] RMS. 4cx800 Output tixe. a Bird 43) terminated in an accurate 50 ohm resistive load. $3,300 for amp and spare set of tubes. The tubes were installed in less than fifteen minutes. However, once the buyer recognized my voice, he decide. VSWR Trip: Automatic standby when reflected power >250 watts. 1 2SC2879 driving 4 x 2SC2879 HG:Amp Draw(maximum) 90 Class C SSB Delay NoPre-amp Driver Required MaximumRecommended Dead Key Output 100w TypicalModulated Power Output (RMS) 300-500 WattsTypical Modulated Power Output (PEP) 600-1000 Watts. The entire reason for my question is my Acom 1000 amp (4CX800) would need about 55 watts drive to produce ~950 watts, I was very surprised the KPA1500 needed so little drive power. Tetrode tubes POWER / OUTPUT GERMANIUM TRANSISTOR. Harris RF110-A Amplifier ancillary kit. 3cx3000a7 Amplifier For Sale. I have no idea of the potential for high-fidelity audio of either tube, but either one should make fine audio amplifiers otherwise. I had a Yeasu 2100F, Heathkit Warrior, and Henry 2K3. INPUT IMPEDANCE: Nominal 50 ohm passive impedance, unbalanced. * Frequency coverage: All amateur bands 1. SPECIFICATIONS Frequency coverage: All amateur frequencies from 1. VENDO VALVULA O TUBO RUSO GU74B O 4CX800. CB Radios and CB Radio Parts, and CB Radio AccessoriesOur Speciality. set of 4CX250's or 4CX350's or even a pair of 4CX800's, that would be great. Select RTTY, key the transmitter and set the RF output to read 100W on the Bird. 5 A Pa 600 W. 160M to 10M amp uses a pair of 4CX800 tubes. 1 pf Cooling Forced Air Base Special Coaxial Air Socket SK-300A/SK-360 Air Chimney SK-306/SK-356 Boiler ---Length 9. I told Henry of the problem, and he recommended that I might try one of two reasonably priced preamplifiers to solve the problem: the Adcom GFP-750 based on a Nelson Pass design, and the Transcendent Sound Grounded Grid designed by Bruce Rosenblit, holder of the Transcendent Patent of the Output-Transformer Less tube amplification output stage. Gmrs amplifier Gmrs amplifier. Tube Amp Capacitor Replacement. 06 900 1 900 Class AB MAXIMUM RATINGS DC PLATE VOLTAGE DC SCREEN VOLTAGE DC PLATE CURRENT PLATE DISSIPATION SCREEN DISSIPATION CONTROL GRID DISSIPATION 3000 400. Harmonic suppression - 1. Petersburg, Russia. 0 pf Output 21. Connect the transmitter output via the line sampler to an RF power meter accurate to within ±5% or better (e. ibla-software. 00 New---- Used; Sleeve of 5 SYLVANIA Jan 6z4/84 Tubes. 3 Amperes 110 MHz 200 20 0. - tolerancia de frecuencia: ± 0,005% - temperatura: -20 ° / + 55 ° c - tensión. Its intermod performance at 1250 watts RF output, with 100 watts of drive to 8875 tubes, as measured by the ARRL (3rd and 5th order distortion products of 35 and 37 dB, respectively) is relatively good by the standards of modern amplifier designs. com goes on vacation from 11 to 27 April 2018. 5 5,000 500 1. 09 pF Ua 2 kV ( 4 kV ) Ug2 300 V Ug1 -150 V Ia 0.