[Milsurplus] Opinion on transformer ?

[Robert Downs]

TANSTAAFL.  If the transformer output is 180 VAC and the doubler output is
470 VDC, the output current rating would only be about 190 mA at 100%
efficiency.  Output watts has to be less than or equal to input watts.  I
don't know what the T-90 needs but the transformer isn't hefty enough for
the TCS transmitter.

 

Robert Downs

 

From: milsurplus-bounces at mailman.qth.net
[mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of Hubert Miller
Sent: Wednesday, February 6, 2019 15:26
To: milsurplus at qth.net; Glowbugs
Subject: [Milsurplus] Opinion on transformer ?

 

I have a NIB transformer rated  180 V  500 mA and 6 V 5A.  The box says
"Will deliver 470VDC in doubler circuit."

I am wondering, would this make a decent transformer for something like the
Harvey Wells T-90 or Navy TCS 

transmitter ? Or will more current be required at HV ? ( Ignoring filament
requirements. )  I understand under

ICAS  transformer ratings can be "pushed".  But a doubler is not going to
have very good regulation. Is that a 

real drawback for AM operation?

tnx,

Hue 

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