Another example, 73 magazine March 1973 P50-54
"The ample amplifier".a pair 4CX250B in G-G configation, the control grid
contact to cathode and the screen grid to ground.
the builder point out that the power gain is 6( 200W in 1200W pep out), I
have no this article, if anyone would like share with me, I'm very glad.
73!Hsu
----- Original Message -----
From: "Hsu" <hsu4qro@gmail.com>
Cc: <amps@contesting.com>
Sent: Wednesday, October 13, 2010 7:35 PM
Subject: cathode driven 4CX250B and super cathode driven
> Please view http://home.comcast.net/~k7rld/4cx250bamplifier.htm, Anyone have
> built it?This amp's sch have been modified, in origional schematic, the R1
> and R2 contac with cathode, but this contact to ground.
> I have modified my Henry Tempo2001 to a pair 4CX250B as original
> schematic in end of 2008, but I found the power gain is too less, so I give
> it up.
> I use simlar 30s1's configation, now, it works great.
> 73! Hsu
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