[BuffaloJack]

I remember the REAL Army-Navy stores.
In 1960 I bought a surplus Geiger counter in one. It took about a month before it stopped working, but I still have it. It needs 2 large electrolytic capacitors and 4 D-cell batteries.
The Army-Navy stores really were an adventure for young boys.

[null and void]

I had a civil defense one that needed a 22-1/2 volt battery...