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ESV892

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ID = 82993
       
Country:
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Tube type:  Transmitter Triode, liquid-cooling   Power/Output 
Identical to ESV892

Base TRANSMITTING & Power-TUBES/VALVES in gen
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.

 
Information source - - Manufacturers Literature   Ediswan tube catalog January 1959

 

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