To: | <amps@contesting.com> |
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Subject: | [Amps] 3-400Z vs. 4-400A |
From: | 2@mail.vcnet.com (Richard) |
Date: | Fri, 5 Jul 2002 11:42:56 -0700 |
>Some time ago a guy told me he was substituting the >4-400A tube in his Swan Mark 1 amplifier instead of >using the 3-400Z tube. He had a large supply of the >4-400A tubes on hand and said they were working very >well in the Swan Mark 1 even though it was designed >around the 3-400Z tube. Is this an ok thing to do in >the long term? >73, In g-g, at 0v bias, the 4-400A needs c. 3400V to idle at the requisite 75mA. - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, www.vcnet.com/measures. end |
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