[AMPS] 4PR1000 advise pls

[Rich Measures]

>
>Hi all,
>This is my first post to this reflector. I hope it makes it ok.
>
>I am planning to rebuild my old amp (4 - 811A's in G-G) and replace the
>entire deck with a single 4PR1000.
>I have the Socket, HV transformer, caps, roller inductor and the rest. I
>still need the Filiment Xfrmr though.
>
>Has anyone built an amp using one of these tubes? If so, how did it fly?
>Any glitches with the tube or other annoyances that are noteworthy?
>
A pesky screen-resonance at c.25MHz.  .  It thrives on high anode-supply 
potential.  If you have c.200w of available drive, you can cathode drive 
it.  Grid driven AB1 needs around 75w of drive.  



Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm