Rich,
I will be glad to test the tube.
Terry W6RU
----- Original Message -----
From: "measures" <2@vc.net>
To: "Phil (VA3UX)" <phil@vaxxine.com>; "AMPS" <amps@contesting.com>
Sent: Tuesday, October 03, 2000 9:56 PM
Subject: Re: repost - Re: [AMPS] 2nd 8877 test result
>
> >
> >
> >At 03:42 PM 10/3/2000 -0700, you wrote:
> >>
> >>The second reportedly kaput 8877 (s/n LZZ 506) that was removed from an
> >>AL-1500 was tested today. The positive and the negative anode/grid
> >>leakage was under 2uA @ 8000v - so gold-sputtering is not likely. The
> >>heater has continuity. The anode appears to have been quite hot -- but
> >>obviously not hot enough to cause seal failure. Any guesses from the
> >>8877-mavens as to why this tube failed?
> >>
> >>end
> >>
> >
> >Maybe it really isn't dead at all.
> good point. I would hate to saw the anode off of it and find zero
> problems.
>
> >Or maybe it's just plain pooped. What's the expected life span of an
8877..?
>
> c. 15k-hours.
>
> I need to find someone with an 8877 amplifier - that has proven glitch
> protection, who is willing to test a tube.
>
> end
>
>
> cheers, Phil
>
> - Rich..., 805.386.3734, www.vcnet.com/measures.
> end
>
>
> --
> FAQ on WWW: http://www.contesting.com/FAQ/amps
> Submissions: amps@contesting.com
> Administrative requests: amps-REQUEST@contesting.com
> Problems: owner-amps@contesting.com
>
>
--
FAQ on WWW: http://www.contesting.com/FAQ/amps
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
|