[Johnson] Need tech advice on xfmr

[David C. Hallam]

The answer is maybe.

The transformer rating is approximately 520/2 x .090 = 23.4 watts.
Depending upon the size of wire used to wind the transformer you could
probably get 120 mA at 260 VDC out of it.  Breadboard the rectifier circuit
and let it run for awhile and see how hot the transformer gets.  If it gets
too hot to touch, the answer is no it won't work.

No, it is not rated for 180 mA in a FWB.

73
David
KC2JD

-----Original Message-----
From: johnson-bounces at mailman.qth.net
[mailto:johnson-bounces at mailman.qth.net]On Behalf Of C E
Sent: Saturday, November 26, 2005 1:05 PM
To: johnson at mailman.qth.net
Subject: [Johnson] Need tech advice on xfmr


Speaking of xfmrs, I would like to know (say, a
replacement xfmr for an EFJ transmitter) is rated at
520 VCT at 90 mA and I would like to use it in another
application that requires 260 VDC at 120 mA, would
this transformer work without getting fried? Does the
90 mA mean 180 mA in full bridge configuration?
Thanks. Cal.



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