"Dennis Monticelli" <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- The original 3-500Z tubes are still in my L7, Amperex I think. The original owner gave it pretty good exercise on 80M at full power for many years, but my use over the past few years has been very spotty and only at the 400 to 500w level on 120V. Pretty tough tubes in my opinion.
On 6/19/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
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 ________________________________ Check out AOL.com today. Breaking news, video search, pictures, email and IM. All on demand. Always Free.
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