[AMPS] AL-1500 Goes Bang!

[K4ab@aol.com]

Right in the middle of the CQWW contest my AL-1500 goes bang.

Thinking that I might have lost a tube, I disconnected the anode connector and
turned the amp back on.

After the warm-up period, the HV goes to the normal level, stays that way for
a couple of seconds, then returns to zero.

There are no signs of any charred components.

Any guess what's wrong?

73,
Larry K4AB

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