[Amps] AL-1500 problem

[Stan Stockton]

One of my AL-1500 amplifiers has a high SWR on 10, 15 and 20.  The SWR  
is good without the relay closed on all bands and is good on 80 and  
160 with the relay closed.  If I remember correctly it measures about  
1.6 on 20, 3.7 on 15 and over 2-1 on 10m.

Would like to get it going for the contest and would really appreciate  
any suggestions that would help make the diagnosis quick.  Please  
reply directly since I am subscribed for the digest.

Thanks...Stan, K5GO