Battery Eliminator for Valve Radios 90 + 1.5 Volt
(BAT-ELIM-90)
Battery Eliminator for Valve Radios 90 + 1.5 Volt
Using a battery powered, valve portable radio, is no longer an easy thing to do. The dual-voltage 90 volt and 1.5 volt batteries went out of production in the late 1960's.
The mains-powered 'battery eliminator' now makes it possible to run your battery powered valve radio. Additionally, now that radio tubes are no longer in production, it makes good sense to provide close regulation of the low-voltage 'A' supply to the valve filaments so that their life is not brought to a premature end. (The actual voltage is 1.4 volts, but is commonly refered to as 1.5v)
This design uses a voltage regulator for the low-tension heater supply (the 'A' supply), and a double insulated transformer to provide the 90v (the 'B' supply).
Also available as a kit (less case)
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