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RE: pushing the photocopier tranny
Subject:
RE: pushing the photocopier tranny
Date:
Sat, 05 Apr 1997 00:05:00 -0500 (EST)
From:
Benson_Barry%PAX5-at-mr.nawcad.navy.mil
To:
tesla-at-pupman-dot-com
Hi Dave, All,
I have trouble keeping the voltage low enough without
the resonant circuit!!! The resonant rise from the primary
capacitor will bring the voltage up a lot. With 0.08 uF
in my primary tank I can't crank the variac above 80
volts without firing the safety gaps set at 4500 volts
across each transformer (56" spark). The voltage
isn't the problem. The problem is finding a capacitor
big enough to feed to these things!
Barry
----------
From: "tesla"-at-pupman-dot-com-at-PMDF-at-PAXMB1
To: Benson Barry; "tesla"-at-poodle.pupman-dot-com-at-PMDF-at-PAXMB1
Subject: pushing the photocopier tranny
Date: Friday, April 04, 1997 4:35PM
<<File Attachment: 00000000.TXT>>
Subject:
pushing the photocopier tranny
Date:
Wed, 02 Apr 1997 14:38:44 -0600
From:
huffman <huffman-at-FNAL.GOV>
To:
tesla-at-pupman-dot-com
Hi Group,
I did some measurements on the 5000V 300mA photocopier transformers
today.
The primary 1-2 is 0.41Ohms DC, 100mH, the secondary 6-7 is 284 Ohms DC,
44H.
With 21Vrms in I get 500Vrms out so with 120Vrms in I should get
2857Vrms
out. I don't have a meter that can measure that high! I have a question,
how large a value can I run on the primary? Is it just a matter of core
loses? I know I can run them at 132V without a problem. Does anyone know
how fast the core will saturate as the input is raised? I was thinking
of
removing some of the primary turns to regain output voltage lost by not
using the resonate circuit.
Any thoughts?
Dave Huffman