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 power grid devices page on Eimac's web site. However, full data sheets are not available there. This site aims to fill that gap.
The site does not have every data sheet.
| Manufacturer | Model | 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 | 400W | Forced air | 500MHz | 3CX400A7 No newish data sheet. Only old 8874. |
| Eimac | 8874 | 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) photo #1 photo #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 | 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??) |
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 | 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 | 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 | 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 | 1200W | Forced air | 110MHz | 3CX1200. |
| Eimac | 3CX1200D7 / YU-121 | 1200W | Forced air | 110MHz | 3CX1200. |
| Eimac | 3CX1200Z7 YU-181 | 1200W | Forced air | 110MHz | 3CX1200. |
| Eimac | 3CPX1500A7 | 1500W | Forced air | --- | 3CPX1500. Designed for pulse use |
| Eimac | 3CX1500A7 8877 | 1500W | Forced air | 250MHz | 3CX1500. Popular tube. |
| Eimac | 3CX1500D3 | 1500W | Forced air | 110MHz | 3CX1500. Intended for industrical heating applications. |
| Eimac | 3CX1500C7 / 8938 | 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 | 1500W | Forced air | 100MHz | 3CX1500. |
| Eimac | 8962 8962 brief (NOT full data sheet) | 1500W | Forced air | 1000MHz | 8962 Would seem a nice tube, with big dissipation at 1GHz. |
| Russian | 7213 | 1500W | Forced air | 1000MHz | |
| Eimac | Y-831 | 1500W | Forced air | 1500MHz | Highly linear. |
| Eimac | 3CW2000D3 | 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 | 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 | 2500W | Forced air | 110 MHz | 3CX2500. Yes, 4 kW dissipation despite the part number. |
| Eimac | 3CX2500D3 | 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 | 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 | 4000W | Forced air | 75MHz | 3CX2500. Yes, 4 kW dissipation despite the part number. |
| Eimac | 3CX2500H3 | 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 | 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 | 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 | 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 | 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 | 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 | 5000W | Forced air | 110MHz | 3CPX5000. Identical, apart from some tests performed at Eimac, to the YC156 |
| Eimac | 3W5000F1 | 5000W | Water | audio | 3W5000F1 |
| Eimac | 3W5000F3 | 5000W | Water | 30 MHz | 3W5000F3 |
| Eimac | 3CW5000A1 / 8240 | 5000W | Water | audio | 3CW5000A1 No FULL Eimac data sheet - can you supply one? If so please upload the file(s) |
| Eimac | 3CW5000A3 (brief, not full data sheet) | 5000W | Water | 75MHz | 3CW5000A3 No FULL Eimac data sheet - can you supply one? If so please upload the file(s) |
| Eimac | 3CW5000A7 | 5000W | Water | 110MHz? | 3CW5000A7 |
| Eimac | 3CW5000F1 (brief, not full data sheet) | 5000W | Water | 75MHz | 3CW5000F1 No FULL Eimac data sheet - can you supply one? If so please upload the file(s) |
| Eimac | 3CW5000F3 | 5000W | Water | 75MHz | 3CW5000F3 No FULL Eimac data sheet - can you supply one? If so please upload the file(s) |
| Eimac | 3CW5000F7 | 5000W | Water | 75MHz? | 3CW5000F7 |
| Eimac | 3CX5000A7 | 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 | 5000W | Forced air | 90MHz | 3CX5000. |
| Eimac | 3CX5000U7 | 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 | 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 | 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 | 7000W | Water | 75MHz | 3CW7000F7 3CW7000. No data sheet - can you supply one? If so please upload the file(s) |
| Eimac | YC243 | 6000W | Forced air | 108MHz | Does not need a socket. |
| Eimac | 3CW7000H3 / YU-842A | 7000W | Water | 75MHz | 3CW7000H3 3CW7000. No data sheet - can you supply one? If so please upload the file(s) |
| Eimac | 3CW10,000H3 3CW10000H3 | 10,000W | Water | 90MHz | 3CW10,000H3 3CW10000 3CW10000H3 |
| 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) |
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 | 10,000W | Forced air | 160MHz | 3CX10000A7 |
| Svetlana | 3CX10,000A7 8160 | 10,000W | Forced air | 160MHz | 3CX10,000 3CX10000. |
| Eimac | 3CX10,000B7 | 10,000W | Forced air | 110MHz | 3CX10000B7 3CX10,000 3CX10000. |
| Eimac | 3CX10,000D3 3CX10000D3 | 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 | 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 | 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 | 15,000W | Forced air | 100MHz | 3CX15,000A3 3CX15000 3CX15000A3 |
| Svetlana | 3CX15,000A3 3CX15000A3 8159 | 15,000W | Forced air | 100MHz | 3CX15,000A3 3CX15000A3. |
| Eimac | 3CX15,000A7 3CX15000A7 | 15,000W | Forced air | 110MHz | |
| Eimac | 3CX15,000B7 3CX15000B7 | 15,000W | Forced air | 110MHz | 3CX15,000 3CX15000. Has the same grid and cathode as the 3CPX5000A7 and the YC156 |
| Eimac | 3CX15,000H3 | 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 | 20,000W | Water | 110MHz | 3CW20,000A3 3CW20000A3 3CW20000. |
| Eimac | 3CW20000A7 3CW20,000A7 (brief, not full data sheet) | 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 | 20,000W | Water | 90MHz | 3CW20,000H3 3CW20000H3 3CW20000. |
| Svetlana | 3CW20,000H3 3CW30000H3 | 20,000W | Water | 90MHz | 3CW20,000 3CW20000. |
| Eimac | 3CW20,000H7 3CW20000H7 | 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 | 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 | 30,000W | Vapor | 100MHz | 3CV30,000A3 3CV30000A3 3CV30000. |
| Eimac | 3CV30,000H3 | 30,000W | Vapor | 100MHz | 3CV30000H3 3CV30000 |
| Eimac | 3CW30000H3 | 30,000W | Water | 90MHz | 3CW30,000H3 3CW3000H3 3CW30000. |
| Svetlana | 3CW30,000H3 3CW30000H3 | 30,000W | Water | 90MHz | 3CW30,000 3CW30000. |
| Eimac | 3CW30,000H7 3CW30000H7 | 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 | 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 | 40,000W | Water | 90MHz | 3CW40,000 3CW40000 |
| Eimac | 3CW40,000H3 3CW40000H3 | 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 | 200,000W | Vapor | 30MHz | 3CV200,000D3 3CV200000D3 3CV200000 No FULL Eimac data sheet - can you supply one? If so please upload the file(s) |
