I lost my Alpha 87A manual, and have a fault indication. On 10m only, the
amp goes in protection showing LED 1 and 3 blinking.
I changed the tranceiver, antenna measured the line voltage, enven
changed the tubes, the fault occures when the output is more than
300 W on 10 m only. On all other bands the amp runs fine.
Can somebody look up this fault in a manual ? or
can somebody send me the different fault codes from the manual ?
Thanks,
best 73's
Eddy ON7UN
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