[Amps] Heathkit Warrior High Plate Curent

Eddie Bradshaw KJ4R kj4r at ftc-i.net
Sun Nov 2 17:31:05 EST 2008


Thanks to everyone who provided insight into the problem I'm having with my HA-10. 
 However,  the problem is still unresolved.  I have checked everything in the RF deck 
that I can possibly think of to check and I can't find anything wrong. 
No shorts, no opens, and all the caps check okay on my cap checker,
or at least they read the correct value.
 I was able to swap out the DC blocking cap with a known good one. 
 The band switch checks out.  Both the tune and load caps are okay.
 Several suggestions that I received pointed to an unloaded output circuit, 
(bad xmit / rcvr. relay or coax)  but I have good continuity to my 50 ohm 
dummy load.  I removed the plate choke 
and tested it with an O' scope and RF generator
 to make sure it is okay. 
 Lastly I removed 3 of the tubes and 
tried to tune up with just one tube at the time.
  I rotated each of the 4 tubes in one at a time 
and got the same problem......high 
current......no output.  I purchased this amp
 "as is" so I guess it's possible I got
4 bad tubes?  Anyone have any other ideas?
 
Thanks!
Eddie KJ4R


More information about the Amps mailing list