ADMIRAL mod. 4B22
Characteristics:
American radio (USA) year 1953 portable tube powered by batteries or from the network, ferrite antenna.
In battery operation it uses a 7.5 volt battery for the filaments and a 67.5 volt battery for the anode.
The electrolytic capacitors were replaced, however, inserting the new ones in the old empty container.
The photo of the interior is shown below.
Factory |
Admiral |
Model |
4B22 |
Production |
USA 1953-54 |
Valves |
1R5,1U4,1U5,3V4 |
Range |
AM |
Supply |
with batteries and 110 volt (dc or ac) mains see the comment above. |
The knobs |
 |
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