[AMRadio] Plate modulating a 807

[W7QHO at aol.com]

In a message dated 4/7/04 10:12:59 PM, rjmattson at hvi.net writes:


> Here is a marked up transmitter drawing showing the values in question:
> http://www.hvinet.com/rjmattson/four20schematic_mu
> 
> bob...w2ami
> 
Bob,

Hmmm.   Not your usual circuit but might work OK.    At 15K, R24 may be large 
enough to let the SG self-modulate.   Screen bypass (C24) looks kinda big too 
and could affect highs but what the heck, give it a try and see what happens. 
  If you don't like the results try a choke in the SG lead as has been 
mentioned before or return the element to the modulated plate line through about 40K 
ohms.

Dennis D. W7QHO
Glendale, CA


--- StripMime Report -- processed MIME parts ---
multipart/alternative
  text/plain (text body -- kept)
  text/html
The reason this message is shown is because the post was in HTML
or had an attachment.  Attachments are not allowed.  To learn how
to post in Plain-Text go to: http://www.expita.com/nomime.html  ---