Antique radios, Old Time Radios
ESV892
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Country:
Great Britain (UK)
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| Identical to |
ESV892
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| Base |
TRANSMITTING & Power-TUBES/VALVES in gen
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 22 Volts / If 60 Ampere / Direct / Specified voltage AC/DC |
| Description |
This tube was designed for Vapour Cooling rather than normal water cooling.
The tube is fitted in a closed loop system where the anode is the heater in a water boiler. the steam created is then condensed and returned to the boiler. The surface of the anode reaches temperatures above the boiling point unlike that in a water cooled system where boiling is prevented.
Suitably engineered, this can result in a compact system but requires regular checks on water level and quality which must provide good insulation and low contamination - small traces of oil can gretly reduce efficiency due to anode surface effects. Contamination builds up in the water as the volume is much lower than in a normal water-cooled scheme.
This tubeis listed in Babani as ESW892. W indicates a water cooled type.
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| Information source |
- - Manufacturers Literature Ediswan tube catalog January 1959
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