The anode of special design can dissipate 20 kW. The corresponding energy can be transferred to a secondary circuit at a temperature of about 100°C.
| GENERAL DESCRIPTION |
|
The TH 479 is a vapor cooled transmitting triode used as an oscillator, AF or RF amplifier. It can operate at full load up to 30 MHz. The anode of special design can dissipate 20 kW. The corresponding energy can be transferred to a secondary circuit at a temperature of about 100°C. |
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| TECHNICAL SPECIFICATIONS | |
| ELECTRICAL | |
| Type of cathode | Thoriated tungsten |
| Heating | Direct D.C. or A.C. single phase |
| Filament voltage | 7,2 V |
| Filament current | 150 A |
| Maximum surge current | 450 A |
| Filament resistance (cold) | 0,007 Ω |
| Interelectrode capacitances : - cathode - grid - grid - anode - anode - cathode |
45 pF 21 pF 0,6 pF |
| Amplification factor | 50 |
| Transconductance | 20 mA/V |
| MECHANICAL | |
| Operating position | Vertical, anode down |
| Anode cooling | Vaporization of water |
| Maximum temperature of glass bulb and electrode terminals | 150 °C |
| Cooling of glass bulb and electrode terminals | Forced air |
| Cooling air-flow | 0,3 m3/mn |
| Net weight, approx | 9.5 kg |
| Specifications may change without notice | |
| THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS | ||
| Manufacturer | Transmitter specifications | Power in kW |
| AME | ENE 1470 | 30 |
| THIS TUBE IS AVAILABLE FROM | ||
| Manufacturer | Rebuilder | Distributor |
| 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 |