[Amps] 4CX1500B

[Carcia, Francis A HS]

4CX1500B works great in a 30S1 which I think is the same configuration gfz

-----Original Message-----
From: robert briggs [mailto:vk3zl at bigpond.com] 
Sent: Wednesday, September 21, 2005 2:25 AM
To: Amplifiers
Subject: [Amps] 4CX1500B

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..
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