[AMPS] 4CX1000A amp projects

[measures]

>
>:From: "Fisher" <fisher@pldi.net>
>:Am wanting to build an amp based around a single 4CX1000A tube.  
>:I don't yet know the significance of the built-in capacitor 
>
>More on that later, it's very important for bypass.
>
>:I have scoured my sources and have found nothing specific for the
>4CX1000
>:except the 30S-1 schematic which I would rather not try to apply.
>:Lu K5YP
>
>There are a number of proven  4cx1k designs, I have a few other 
>circuits available for posting on the http://sonic.ucdavis.edu server. 
>Let me know if you'd be interested, I'll try to get them up early next 
>week. 
>One is an old QST article I don't like because of no shunt screen 
>regulator.  Another I could post is a famous "Loudenboomer" 
>construction article from some years back.  Older hand books 
>are another source of ceramic circuits. 
>Although the 30S-1 circuit looks hard to copy, it's one of the better 
>designs. 
>
The 30S-1's cathode driven circuit (AB1) has some advantages, however, 
the tuned inputs are way more complex than a grid driven AB1 input, and 
the 1A resonant-choke screen supply is a bit more of a job than a shunt 
zener-string reg.  

cheers

-  Rich..., 805.386.3734, www.vcnet.com/measures.  


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