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
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