| GENERAL DESCRIPTION |
 |
The TH 581 tube is a high-power ceramic-metal emission tetrode with an integrated boiler. This tube can be used as an oscillator or AF or RF amplifier. It can operate up to 30 MHz and deliver a power of 125 kW. The anode, equipped with a special radiator, can dissipate 150 kW. The corresponding energy is transferred by vaporization and immediate condensation to a distilled water circuit whose temperature can reach 100°C. It can be used in a secondary circuit at a high temperature. |
 |
| TECHNICAL SPECIFICATIONS | |
| TYPICAL OPERATING CONDITIONS | |
| Frequency | 26 MHz |
| Anode voltage | 14 kV |
| Anode current | 10.5 A |
| Screen grid voltage | 1000 V |
| Screen grid current | 0.8 A |
| Control grid voltage | -550 V |
| Control grid current | 0.9 A |
| HEATER POWER SUPPLY | |
| Filament voltage | 10 V |
| Filament current | 280 A |
| MAXIMUM RATINGS | |
| Anode voltage | 15 kV |
| Anode dissipation | 150 kW |
| Control grid dissipation | 0.8 kW |
| Screen grid dissipation | 2 kW |
| DIMENSIONS | |
| Diameter | 270 mm |
| Length | 520 mm |
| Mass | 35 kg |
| Specifications may change without notice | |
| THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS | ||
| Manufacturer | Transmitter specifications | Power in kW |
| Ampegon | TSW 2100D | 100 |
| Marconi | B 6127 | 500 |
| Kokusai Denki | TA-1002 | 100 |
| Thales | TSW 2100 | 100 |
| Thomson | TSW 2100 D | 100 |
| THIS TUBE IS AVAILABLE FROM | ||
| Manufacturer | Rebuilder | Distributor |
| Thales | Econco | |
| Kennetron | ||
| PRICE LEVEL (US$) | |||||
| 1 | 2 | 3 | 4 | 5 | 6 |
| 0 - 10 | 10 - 100 | 100 - 1000 | 1000 - 10,000 | 10,000 - 50,000 | 50,000 - 100,000 |