Thread: Unknown Radio
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Old 30th Sep 2022, 8:16 pm   #15
Graham G3ZVT
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Join Date: May 2010
Location: Greater Manchester, UK.
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Default Re: Unknown Radio

The other thing I associate with this style of radio, at least the one I had, mains/battery with a fibreboard case, is the crude battery charging feature. A "charge" switch and indicator light. As "D" size nicads were expensive and specialist items, not yet available on the High St, I've always assumed the intention was to charge "normal" HP7 cells.

Attempting this was not unknown, and it would be interesting to see a circuit to see if the often recommended "Dirty DC" technique was used.
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