Fellow enthusiasts,
I'm trying to collect user experiences regarding 3-500Z tube failures with the Drake L-7 linear amplifier. Specifically, I'd like to know if you've had a single tube failure, the one toward the centerline of the chassis NOT the one in the corner. Further, I'd like to know if the filament has "opened" or if the lead from the envelope, to the socket pin, has become desoldered; this pin is the one closest to the rear apron of the chassis.
Thanks and 73,
Evan
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