Question re TL 922 amplifier
"Uncle Peter" wrote in message
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"bob.martin" wrote in message
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" and after lunch the problem had returned and this time is persisting
despite removal of the valve. I haven't yet tried the mains blast across
the pins as I'm not that confident!
e advice
Jim G7NKS
You can use a charged cap to "blast" the short, might be less
dramatic than the unlimited current behind the mains.. This
sometimes vaporizes part of the grid structure and affects
tube operation..
Pete
Well done to you all,it's nice to see real amateur radio for once on this
board.More of it please
Keith.
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