[Amps] cathode driven 4CX250B and super cathode driven

[Hsu]

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 at gmail.com>
Cc: <amps at 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