Triode data sheets

Here is some data on the power triodes that might be usable by amateurs for radio projects. Devices are listed from 100W to 50kW. Where possible, Eimac data sheets are provided, as Eimac tubes are used by so many hams. However, I don't have data sheets for all tubes. Sometimes a link is provided to a short summary on Eimac's web site. These are not full data sheets. Data sheets from Svetlana and others are often listed too. Currently no data is listed for Burle tubes. This is because there are so many of them. But feel free to look in the Burle directory if you know what you are looking for.

A list of of Eimac Planar triodes can be found on Richard Electronics web site, and a more complete list on the same site too. The table below concentrates mainly on the larger dissipation devices from Eimac. Note, that quick-reference (1-page summaries) of the all Eimac power tubes publicly available can be found at the product overview on Eimac's web site. However, full data sheets are not available there. This site aims to fill that gap.

Manufacturer Model Summary Anode dissipation Cooling Fmax Notes
Eimac 2C39A   100W Forced air 3000MHz 2C39. Popular tube.
Philips 2C39A   100W Forced air 3000MHz 2C39. Popular tube.
General Electric 2C39B   100W Forced air 2500MHz 2C39.
Eimac 3CX100A   100W Forced air 3000MHz 3CX100. Like 2C39A
Machlett Laboratories
(unverified)
2C39WA   100W Forced air 3000MHz 2C39
Eimac 8755   150W Can be conduction, convection, air or liquid!!! 3000MHz 8755. Needs screw on radiator for forced air cooling to get the full 150W dissipation.
Svetlana 572B   160W Radiation & Forced air 30MHz 572. Popular tube.
Eimac 8873   200W Forced air 500MHz Similar to 8874 and 8875. Old (1979) data sheet
Eimac 8875   300W Forced air 500MHz Similar to 8873 and 8874. Old (1979) data sheet.
Svetlana 3CX300A1   Forced air 300W
convection 30W
Forced air or convection Audio 3CX300.
Eimac 3CX400A7 / 8874 brief 400W Forced air 500MHz 3CX400A7
No newish data sheet. Only old 8874.
Eimac 8874 brief 400W Forced air 500MHz Similar to 8873 and 8875. Old data sheet, no mention of 3CX400A7
Svetlana 3CX400A7 / 8874   400W Forced air 500MHz 3CX400.
Eimac 3CX400U7 (8961) brief
picture #1
picture #2
400W Forced air 1000MHz 3CX400.
Eimac 3-400Z / 8163   400W Forced air 110MHz 3-400. Glass envelope
Eimac Y820 / X2172F   400W Conduction in oil with heatsink --- Designed as a swtich, so unlikly to work as a linear amplifier.
Philips TB4/1250   450W radiation, possibly air too. 100MHz
Eimac 3-500Z (1980 copy)
3-500Z (1968 copy)
  500W Forced air 110MHz 3-500. Glass envelope. There are two data sheets, one 1968, the other 1980. The older spec has a graphite anode.
Eimac 3CPX800A7 brief 800W Forced air 500MHz 3CPX800A7 3CPX800.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
See Svetlana 3CPX800A7
Svetlana 3CPX800A7   800W Forced air 500MHz 3CPX800.
Eimac 3CX800A7

3CX800A7 Preliminary (true spec??)

3CX800A7 1500W FCC ruling (reduced for FCC??)
brief 800W Forced air 350MHz 3CX800. It would appear the preliminary specs (March 1983) were revised 2 months later to keep within the 1500W amateur limit.

There's a Penta 3CX800A7 and a Svetlana 3CX800A7 data sheet too.
Penta 3CX800A7   800W Forced air 350MHz 3CX800. There's an Eimac 3CX800A7 data sheet too. That is probably the more useful than the Penta one for most people.
Svetlana 3CX800A7   800W Forced air 350MHz 3CX800. There's an Eimac 3CX800A7 data sheet as well as a Penta 3CX800A7 too.
Eimac 3CX800U7 brief 800W Forced air 1000MHz 3CX800.
Amperex 3-1000Z / 8164   1000W Radiation &
forced air
110MHz 3-1000. Glass envelope. There's also here data on an Eimac 3-1000Z (8164)
Eimac 3-1000Z / 8164   1000W Radiation &
forced air
110MHz 3-1000. Glass envelope. There's also here data on an Amperex 3-1000Z (8164)
Eimac 3CX1000A3 brief 1000W Forced air 100MHz 3CX1000A3 3CX1000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CX1000A7 / 8283 brief 1000W Forced air 220MHz 3CX1000.
Eimac Y-811 Planar triode   1000W Conduction and convection --- Designed as a switch, so unlikly to work as a linear amplifier.
Eimac 3CX1200A7 brief 1200W Forced air 110MHz 3CX1200.
Eimac 3CX1200D7 / YU-121 brief 1200W Forced air 110MHz 3CX1200.
Eimac 3CX1200Z7 YU-181 brief 1200W Forced air 110MHz 3CX1200.
Eimac 3CPX1500A7 brief 1500W Forced air --- 3CPX1500. Designed for pulse use
Eimac 3CX1500A7 8877 brief 1500W Forced air 250MHz 3CX1500. Popular tube.
Eimac 3CX1500D3 brief 1500W Forced air 110MHz 3CX1500. Intended for industrical heating applications.
Eimac 3CX1500C7 / 8938 brief 1500W Forced air 500MHz 3CX1500. This 1972 data sheet is for an Eimac 8938. However, Eimac's quick reference guide shows the 8938 to be known as the 3CX1500C7 too, As always, data on this site is probably not the latest, but I hope it is better than the usual ham tactic of guessing at values.
Eimac 3CX1500D7 brief 1500W Forced air 100MHz 3CX1500.
Eimac 8962 brief (local) 1500W Forced air 1000MHz 8962 Would seem a nice tube, with big dissipation at 1GHz.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Russian 7213   1500W Forced air 1000MHz  
Eimac Y-831   1500W Forced air 1500MHz Highly linear.
Eimac 3CW2000D3 brief 2000W Water 110MHz 3CW2000D3 3CW2000. A version of the air cooled 3CX1500D3.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CW2500C7 YU-157 brief 2500W Water 500MHz 3CW2500C7 / YU-157 3CW2500.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CX2500A3 / 8161 brief 2500W Forced air 110 MHz 3CX2500. Yes, 4 kW dissipation despite the part number.
Eimac 3CX2500D3 brief 2500W Forced air 110MHz 3CX2500D3 3CX2500.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CX3000F1 8239   3000W Forced air audio 3CX3000
Eimac 3CPX3500U7 brief 3500W Forced air 400 or 500MHz 3CPX3500. Data sheets says frequency of maximum ratings is 400MHz, but brief summary on Eimac site says 500MHz.
Eimac 3CX2500F3 / 8251 brief 4000W Forced air 75MHz 3CX2500. Yes, 4 kW dissipation despite the part number.
Eimac 3CX2500H3 brief 4000W Forced air 75MHz 3CX2500. Yes, 4 kW dissipation despite the part number.
Svetlana 3CX2500H3   4000W Forced air 75MHz 3CX2500
Eimac 3CX3000A1 8238 This data sheet is old (1967) and shows only a 3 kW dissipation brief 4000W Forced air audio 3CX3000. Brief online data sheet shows anode dissipation as 4 kW max, but data sheet shows 3 kW max
Eimac 3CX3000A7 brief 4000W Forced air 110MHz 3CX3000. 3CX3000A7 is good to 110MHz - the 3CX3000F7 has flexible leads and is only good to 75MHz.
Svetlana 3CX3000A7   4000W Forced air 110MHz 3CX3000. 3CX3000A7 is good to 110MHz - the 3CX3000F7 has flexible leads and is only good to 75MHz.
Eimac 3CX3000F7 / 8162 brief 4000W Forced air 75MHz 3CX3000. 3CX3000F7 has flexile leads, so only good to 75MHz, whereas the 3CX3000A7 is good to 110MHz
Svetlana 3CX3000F7 8162   4000W Forced air 350MHz 3CX3000. There's an Eimac 3CX3000F7 data sheet too.
Eimac 3CX4000F3 / YU-199 brief 4000W Forced Air 110MHz 3CX4000F3 / YU-199 3CX4000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CX3000F1 / 8239 brief 4000W Forced Air audio 3CX3000F1 3CX3000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Svetlana 3CX3000F7 / 8162   4000W Forced air 75MHz 3CX3000. 3CX3000F7 has flexile leads, so only good to 75MHz, whereas the 3CX3000A7 is good to 110MHz
Eimac 3CPX5000A7 brief 5000W Forced air 110MHz 3CPX5000. Identical, apart from some tests performed at Eimac, to the YC156
Eimac 3CW5000A1 / 8240 brief 5000W Water audio 3CW5000A1
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CW5000A3 brief 5000W Water 75MHz 3CW5000A3
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CW5000A7
front
page
only
brief
(local)
5000W Water 110MHz? 3CW5000A7
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CW5000F1 brief 5000W Water 75MHz 3CW5000F1
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CW5000F3 brief 5000W Water 75MHz 3CW5000F3
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CW5000F7
front
page
only
brief
(local)
5000W Water 75MHz? 3CW5000F7
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CX5000A7 brief 5000W Forced air 110MHz 3CX5000A7 3CX5000. Although the data sheet says class C is okay, Eimac tell me they don't advise it.
Eimac 3CX5000H3 brief 5000W Forced air 90MHz 3CX5000.
Eimac 3CX5000U7 brief 5000W Forced air 500MHz 3CX5000U7 3CX5000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac YC156   5000W Forced air 110MHz Identical, apart from some tests performed at Eimac, to the 3CPX5000A7
Eimac YC-179 picture 5000W Forced air 110MHz Electrically identical to the YC-156 and 3CPX5000A7. However, it is made mechanically a bit different on the grid ring, so will not easily fit where the YC-156 should fit. Clearly done for commerical, not technical reasons.
Eimac 3CX4500F3 / YU-108 brief 6000W Forced air 75MHz 3CX4500F3 3CX4500.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Svetlana 3CX4500F3 / YU-108   6000W Forced air 75MHz 3CX4500.
Eimac 3CX6000A7 / YU-148 brief 6000W Forced air 225MHz 3CX6000.
Svetlana 3CX6000A7 / YU-148   6000W Forced air 225MHz 3CX6000
Svetlana 3CX6000H3   6000W Forced air 90MHz 3CX6000. Does anyknow know if Eimac ever made such a tube?
Eimac 3CW7000F7 / YU-106 brief 7000W Water 75MHz 3CW7000F7 3CW7000.
No data sheet - can you supply one? If so please upload the file(s)
Eimac YC243 brief 6000W Forced air 108MHz Does not need a socket.
Eimac 3CW7000H3 / YU-842A brief 7000W Water 75MHz 3CW7000H3 3CW7000.
No data sheet - can you supply one? If so please upload the file(s)
Eimac 3CW10,000H3 3CW10000H3 brief 10,000W Water 90MHz 3CW10,000H3 3CW10000 3CW10000H3.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CX10,000A1 8158 - 10,000W Forced air 160MHz 3CX10,000A1 3CX10000A1 3CX10000. Intended for audio amp or voltage regulator, yet frequency of max ratings is 160MHz.
Eimac 3CX10,000A3 / 8159
(tentative)
brief 10,000W Forced air 160MHz
No up to date data sheet - can you supply one? If so please upload the file(s)
Eimac 3CX10,000A7 8160 brief 10,000W Forced air 160MHz 3CX10000A7
Svetlana 3CX10,000A7 8160   10,000W Forced air 160MHz 3CX10,000 3CX10000.
Eimac 3CX10,000B7 brief 10,000W Forced air 110MHz 3CX10000B7 3CX10,000 3CX10000.
Eimac 3CX10,000D3 3CX10000D3 brief 12,000W Forced air 120MHz 3CX10,000D3 3CX10000D3 3CX10000.
No data sheet - can you supply one? If so please upload the file(s)
Eimac 3CX10,000H3 brief 10,000W Forced air 90MHz 3CX10,000H3 3CX10000H3 3CX10000.
Svetlana 3CX10,000H3 3CX10000H3   10,000W Forced air 90MHz 3CX10,000 3CX10000.
Eimac 3CX10,000U7 3CX10000U7 brief 10,000W Forced air 250MHz 3CX10,000U7 3CX10000U7 3CX10000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
The Eimac X2186 data sheet has scribbeled on it 3CX10,000U7
Svetlana 3CX10,000A3 3CX10000A3 8159 12,000W Forced air 140MHz 3CX10,000 3CX10000. Eimac version is rated 10kW, not 12kW
Eimac X2186 / X-2186 10,000W Forced air 250MHz The data sheet has scribbled on it 3CX10000U7, so probably similar/same as 3CX10000U7
Eimac 3CX15,000A3 3CX15000A3 brief 15,000W Forced air 100MHz 3CX15,000A3 3CX15000 3CX15000A3
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Svetlana 3CX15,000A3 3CX15000A3 8159   15,000W Forced air 100MHz 3CX15,000A3 3CX15000A3.
Eimac 3CX15,000A7 3CX15000A7 brief 15,000W Forced air 110MHz
Eimac 3CX15,000B7 3CX15000B7 brief 15,000W Forced air 110MHz 3CX15,000 3CX15000. Has the same grid and cathode as the 3CPX5000A7 and the YC156
Eimac 3CX15,000H3 brief 15,000W Forced air 90MHz 3CX15,000H3 3CX15000H3 3CX15000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Svetlana 3CX15,000H3 3CX15000H3 8159   15,000W Forced air 90MHz. 3CX15,000 3CX15000.
Eimac 3CW20,000A3 3CW20000A3 brief 20,000W Water 110MHz 3CW20,000A3 3CW20000A3 3CW20000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CW20000A7 3CW20,000A7 brief 20,000W Water 110MHz 3CW20,000A7 3CW20000A7 3CW20000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Svetlana 3CW20,000A7 3CW20000A7   20,000W Water 110MHz 3CW20,000 3CW20000A7.
Eimac 3CW20,000H3 3CW20000H3 brief 20,000W Water 90MHz 3CW20,000H3 3CW20000H3 3CW20000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Svetlana 3CW20,000H3 3CW30000H3   20,000W Water 90MHz 3CW20,000 3CW20000.
Eimac 3CW20,000H7 3CW20000H7 brief 20,000W Water 110MHz 3CW20,000 3CW20000. The Svetlana 3CW,2000H7 is rated to 200MHz
Svetlana 3CW20,000H7 3CW20000H7   20,000W Water 200MHz 3CW20,000 3CW20000. Eimac 3CW20,000H7 is rated to 110MHz, whereas this one is rated to 200MHz.
Eimac 3CX20000A7 20,000W Forced air 110MHz 3CX20000A7 3CX20000. No data sheet. Do you have one?
Eimac 3CX20,000H3 brief 20,000W Forced air 110MHz 3CX20,000H3 3CX20000
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CV30,000A3 3CV30000A3 brief(local) 30,000W Vapor 100MHz 3CV30,000A3 3CV30000A3 3CV30000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CV30,000H3 - 30,000W Vapor 100MHz 3CV30000H3 3CV30000
Eimac 3CW30,000H3 3CW30000H3 brief 30,000W Water 90MHz 3CW30,000H3 3CW3000H3 3CW30000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Svetlana 3CW30,000H3 3CW30000H3   30,000W Water 90MHz 3CW30,000 3CW30000.
Eimac 3CW30,000H7 3CW30000H7 brief 30,000W Water 110MHz 3CW30,000H7 3CW30000H7 3CW30000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Eimac 3CX35,000D3 3CX35000D3 ML-6697A brief 35,000W Forced air 40MHz 3CX35,000D3 3CX35000D3 3CX35000.
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)
Machlett Laboratories ML-6696A   35,000W Water 40MHz (80MHz max) ML-6696A is an water-cooled 60kW version.
Eimac 3CW40,000A3 3CW40000A3 EI3060J   40,000W Water 100MHz 3CW40000 3CW40,000. Direct replacement for Siemens RS3060CJ.
Eimac 3CW40,000A5 3CW40000A5 Y-819 brief 40,000W Water 90MHz 3CW40,000 3CW40000
Eimac 3CW40,000H3 3CW40000H3 brief 40,000W Water 90MHz 3CW40,000 3CW40000
Machlett Laboratories ML-6696A   60,000W Water 40MHz (80MHz max) ML-6697A is an air-cooled 35kW version.
Eimac 3CV200,000D3 / ML-7482 brief 200,000W Vapor 30MHz 3CV200,000D3 3CV200000D3 3CV200000
No FULL Eimac data sheet - can you supply one? If so please upload the file(s)


Valid HTML 4.01 Valid CSS!