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Old 29th Jan 2010, 12:01 am   #6
FERNSEH
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Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
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Default Re: EL or PL509 as an audio output valve.

Quote:
Originally Posted by Michael Maurice View Post
But the PL509 had their anode coming out of the top cap, and you can't leave that exposed.
Swetlana make a version of the EL509 without a top cap. I has the standard octal (K8A) base. But the idea of using the PL509 is to make a cheap to construct high power audio amplifier.

DFWB.
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