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Old 18th Jan 2021, 7:39 pm   #16
ms660
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Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
Default Re: Regentone Handygram

Looking at the photo's in the link in Post#3 it looks like it's an isolated chassis, the mains transformer secondary supplying the feed to the rectifier and supplying the series heaters via a dropper resistor, the one in that one is a 200 Ohm job, that along with the heaters would tally up to approx. 115v, in those photo's the dropper resistor is connected between pin 9 and pin 5, the red wire from pin 9 (anode) going to the secondary of the transformer.......So far as I can make out.

Lawrence.
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