[R-390] R390A AGC troubles

[Llgpt at aol.com]

It is quite possible the "cadaver" Z-503 is a bad one too. They are a known  
troublesome part. If possible try a known good if deck. Maybe you have a 
friend  close by.
 
Les Locklear
 
 
In a message dated 7/26/2005 2:47:01 PM Central Daylight Time,  
n2bc at stny.rr.com writes:

Along  the way I managed to destroy Z503 so I pulled one out of a 'cadaver' 
IF  strip.  I noted that it's slug is fairly well centered in the core.   
Upon 
replacing Z503, the 'new' one behaved the same way.... increasing  stage 
output as the slug was cranked toward the top but it runs out of  adjustment 
before peaking.