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ms660 · 18th Oct 2019, 9:53 am

I did the ball park calcs for a dropper resistor in series with R37 not necessarily to maintain the main HT at the specified value in the manual but to keep the rectifiers maximum hot switching current within the limit set by the manufacturer.

Lawrence.

18th Oct 2019, 9:53 am	#125
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: Philips BX281U20 valve radio I did the ball park calcs for a dropper resistor in series with R37 not necessarily to maintain the main HT at the specified value in the manual but to keep the rectifiers maximum hot switching current within the limit set by the manufacturer. Lawrence.