LA6NCA - POWER SUPPLY FOR OLD BATTERY OPERATED RADIOS

I have designed a power supply for old battery operated radios.
These radios is often designed for transportable use, so an small
power supply operated from 12 VDC is needed to operate these radios.

My new power supply can be used instead of the big anode and heating
battery wish was used.














First generation power. I used here small SMD components wish was difficult to work with.





Second generation power.

Input: 12 VDC
Output1: Heating, 1.2 to 8 Volt, regulated.
Output2: Negative grid voltage, -0 to –8 Volt.
Output3: Anode voltage, 30 to 230 Volt, regulated.


Circuit Diagram


Torn.E.b, KwEa Torn.Fu.b1 Universal Regulated Power

 



Connector pin for German WW2 radios.



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