To: | "Amplifiers" <amps@contesting.com> |
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Subject: | [Amps] 4CX1500B |
From: | "robert briggs" <vk3zl@bigpond.com> |
Date: | Wed, 21 Sep 2005 16:25:26 +1000 |
List-post: | <mailto:amps@contesting.com> |
This one may have been asked before.Over the past few years I have constructed a few amplifiers using pairs of 4CX250/350B tubes in Super Cathode Driven Mode,The Screen Grid grounded and the Control Grid tied to the Cathode.The amplifier's have been quite reliable and I havn't worn a tube out yet despite some quite hard use from time to time. I got the idea origionally from an article by Orr and Sayer in QST July 1967. I am wondering if this method could be applied to the 4CX1500B.I have a few new tube's and a socket or two but can't be bothered with Grid Bias and Screen voltages and all the extra circutry involved. I would be interested in some good technical opinion's. Regards all from Bob VK3ZL.. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps |
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