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Old 14th Oct 2019, 3:17 pm   #47
ms660's Avatar
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 9,497
Default Re: Marconi NS702 / 2207E, SN 623 (Atalanta type) receiver

Have you checked the anode voltage on V1, have you tried a sig gen for inputs or as a substitute osc, various things you can check, first is always the work you've already done.

Also the anode of the 2nd mixer is switched via the band change switch, is that voltage ok?


Last edited by ms660; 14th Oct 2019 at 3:35 pm. Reason: additional circuit info
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