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ms660 · 20th Feb 2018, 7:47 pm

The manual gives a 7D3 as the output valve which is a pentode, in Post # 20 you imply that a PP3521 is fitted, that's a triode.

Lawrence.

20th Feb 2018, 7:47 pm	#25
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: KB 381 5 valve AC/DC superhet The manual gives a 7D3 as the output valve which is a pentode, in Post # 20 you imply that a PP3521 is fitted, that's a triode. Lawrence.