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Neil Purling · 25th Jan 2006, 2:59 pm

I happened to buy several EF91's so I had better try one of them as a pre-amp.
'Scuse the stupid question: What do I do with the other grids when a pentode is wired so it behaves as a triode?

25th Jan 2006, 2:59 pm	#29
Neil Purling Nonode Join Date: Jul 2005 Location: Hull, East Yorkshire, UK. Posts: 2,087	Re: Motorboating I happened to buy several EF91's so I had better try one of them as a pre-amp. 'Scuse the stupid question: What do I do with the other grids when a pentode is wired so it behaves as a triode?