[Amps] AL-1200 no output

[Stein Roar Brobakken]

Hi

 

My friend LA9TJA have a Ameritron AL-1200 amp which stopped output this
weekend during WPX RTTY on 15m.

1.       No output on 30w input anyband.

2.       Hi SWR between RIG and AMP.

3.       Gridmeter shows 150-250 on any band with 30w input

 

We may think it can be the input circuit? Any suggestions to me PM la6fja
(ATT) nrrl.no 

 

73s LA6FJA Rag