Selenium Rectifier / Metal Rectifier queries
"Carter" wrote in message
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On Jan 9, 8:58 am, "N_Cook" wrote:
Firstly are they synomynous?
Would the English military have had access to these size
and sort of ratings, of the later rectifiers, in 1940s,
they could have been heatsinked
TwoMuttHeads wrote:
Copper oxide was used for quite a while.
The "whistle" rectifier in Lionel train transformers of the 1950s were
copper oxide.
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