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|7th January 2004, 10:31 AM||#1|
Join Date: Dec 2003
Help with this transformer/ power supply
I have a power transformer that has a 117vac primary
and a 110vac c.t. secondary.
The primary fuse is a 6amp.
Going through a bridge rectifier in conjunction
with two 6800uf/63v caps to give a DC supply
voltage of 50 volts+/- no load
with a 1.5amp load across the Supply + / -
I get 46.5volts+/- and with a 4 amp load
across the Supply + / - I get 37.5 volts+/-
This power supply came out of a Sunn P.A. twelve, which
I can't find any literature on. According to the
back panel it would put out 200 watts audio into a 4 ohm load.
I don't know what kind of amp circuit it had because it is gone.
All that was left was the faders and the power supply.
The transformer is a shielded typical squared power transformer
that you would see in the early seventies.
Does anyone have an idea of what size of mosfet amp I
could build that it would power?
this link should show a picture of the power supply:
Thanks in advance for any suggestions.
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