Ref: [Amps] AL-1200 Pop (Will Matney)

Thomas Hix w4th at hotmail.com
Thu Jul 8 13:48:58 EDT 2004


I know this may sound stupid, but one time I had an amp that ran a pair of 
3-500z tubes. It had been working fine, and suddenly when I was not 
transmitting, just listening, but had the amp in the operate mode, I also 
heard a loud POP!.....I tried the amp, and it worked as it always had, but I 
decided I had better see what had caused the pop.....I took of the top cover 
on looked down inside the amp, and there to my surprise was a large moth 
that was blown to smithereens....evidently it had flown inside the amp and 
made contact with the high voltage, and blew it's self to pieces.....I had 
all the lights off in the shack at the time, and I guess the glow of the 
3-500z tubes was just more than the moth could resist.....The amp never did 
give me a problem as long as I owned it other than that one large BANG!
Maybe you had something like this to happen to your AL-1200.
73
Tom.....W4TH






Tom's Tubes: Specializing in Amateur Radio Amplifier Tubes/Sockets & G3SEK 
Tetrode/Triode Boards & Kits http://www.tomstubes.com




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