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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

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Old 4th Jul 2018, 11:01 am   #61
AC/HL's Avatar
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 6,469
Default Re: Mystery valve

Looking at the photos, the valve pins appear to have some corrosion, so it's not spent it's life in a development lab.
Bill, BVWS member
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Old 4th Jul 2018, 12:46 pm   #62
Refugee's Avatar
Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 3,389
Default Re: Mystery valve

I wonder if it has been made to experiment with some kind of virtual earth mixer with the anodes strapped together and the grids as inputs.
Perhaps an experiment could be devised using a TV pull double triode to verify if this is possible.
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