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Old 9th Sep 2019, 7:38 am   #2
Electronpusher0
Nonode
 
Join Date: Jun 2016
Location: Bognor Regis, West Sussex, UK.
Posts: 2,296
Default Re: Silver box with a heatsink and a 33-45 switch

Possibly a box to output 50hz pseudo sinewave to power a UK 50Hz record deck from 60Hz mains supply.
The 33/45 switch would change the frequency of the output allowing you to run the deck at 45rpm without changing speed on the deck itself, just leave the deck set to 33.
Peter

Last edited by Electronpusher0; 9th Sep 2019 at 7:41 am. Reason: spelling
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