---------- Forwarded message ---------
发件人: Yueh Hsu <hsu4qro@gmail.com>
Date: 2019年11月10日周日 上午3:27
Subject: Re: [Amps] vacuum tube test
To: Fuqua, William <wlfuqu00@uky.edu>
Bill, I really forgot it。 Could you tell me your idea?my idea:I think it
should be combine a Hi-pot tester and two DC variable power supplys, one
for filament , another one connect with cathode and plate +G1+G2 tie
together, It can test transmission of cathode, the key is how many
current is should be? for hi-pot tester, how many leake current between
cthode and G2?it should below 5uA? 10uA?for anther one, it shoube be
1A,2A?, maybe difference tube have difference data, I know it will damage
the tube if test the tube too long time.I have danage one.homebuild a
transmiting
tube tester is a interesting topic.
Regards
Hsu
Fuqua, William <wlfuqu00@uky.edu> 于2019年11月9日周六 下午2:07写道:
> Years ago I built a portable transmitting tube tester in an old Hickcock
> case.
> It ran off a 12V car battery and I used it often to test tubes at
> Hamvention and
> home.
> Unfortunately I disassembled it and started a redesign to allow me to
> get above 1.5kW tubes.
> Maybe a few of you remember seeing it.
> 73
> Bill wa4lav
>
> ------------------------------
> *From:* Amps <amps-bounces@contesting.com> on behalf of Yueh Hsu <
> hsu4qro@gmail.com>
> *Sent:* Friday, November 8, 2019 11:09 PM
> *To:* Amps <amps@contesting.com>
> *Subject:* [Amps] vacuum tube test
>
> I often seen there are somem people sell very cheap tube in the net.but if
> you can not have amplifier, how to test ?I do know how to test in the
> factory,But who have a large test bench what with high power HV power
> suply?
> I you only have a low volt power supply and a Hi-pot tester, how to test a
> certain tube? for example 3CX 1500A7, 4CX1000A, 4CX 1500B,4CX 250B and 4CX
> 800A
> Regards
> Hsu
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
>
> https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.contesting.com%2Fmailman%2Flistinfo%2Famps&data=02%7C01%7Cwlfuqu00%40uky.edu%7C1e89ee23987b4c09ebd708d764cab81f%7C2b30530b69b64457b818481cb53d42ae%7C0%7C0%7C637088694138475233&sdata=yK3wrYGXRGBEPAxqfPu192BHEmZlbdWviCGSRMoYhnM%3D&reserved=0
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|