Hi,
I want to order 10 HV transformers for my portable hi-pot tester(the
manufacturer's minimum order is 10 pcs).
Anyone would like to share these with me?
Specs:input(220/110V 50Hz, 65/130mA),output:7000V .
weght:850g,Core:Hypersil;WxHxD=95mmx70mmx55mm.
Type: leak magnetic transformet(that means you need not put a bulb to limit
the short circuit current),core:
Hy-persil. Price:$32/ea.Shippingcost:about $10-30 depend on the way(surface,sal
and
air mail).
And I just got some thins for this: HV diodes :16KV/5mA $85C/ea, HV
capacitor,1000P/10KV
(made by Matsushita,this capacitor was used as plate block capacitor in my
2X4CX250B amplifier too, working great. )
$1/ea. And I can supply HV resistor 51M/6W(can hold 18KV),$2/ea.
How to build the Hi-pot tester and how to use it to test NOS tube and vacuum
capacitor:
a.. K8CU has a very good hi-pot tester on his page -
http://www.realhamradio.com/High_Voltage_Breakdown_Tester.htm
b.. Rich, AG6K, also has a good BVT on his page -
http://www.somis.org/BVT.html
c.. Traian, YO9FZS -
http://lists.contesting.com/archives/html/Amps/2004-05/msg00030.html
d.. John Lyles -
http://lists.contesting.com/archives/html/Amps/2001-09/msg00232.html
e.. Tom, W8JI -
http://lists.contesting.com/archives/html/Amps/2001-09/msg00238.html
f.. Tom, W8JI - http://www.w8ji.com/vacuum_tubes_and_vaccum_tube_failures.htm
Now, I have some 4CX250B's socket($1.5/ea) , 3CX1500A7/8877's socket($6/ea)
and two pair brand new(4pcs)
RCA 8122 for sale.date code is 1980s,Hi-pot and emission test OK. $600/pair,
include shipping.
All JPGs on request.
73!Hsu
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