[Milsurplus] INFO/EXPLANATION

[J. Forster]

You can get a rough idea, if you know the type of rectifiers it was
designed to go with. The rectifier drop complicates matters.

Assuming they were solid state diodes with essentially zero forward drop
and that it was used w/ a capacitor input filter of large enough value
that the ripple was small at 0.3 A DC, the 920 V is essentially the peak,
so the RMS AC would be 920 / 1.414 = 650 V RMS....  Ground to either leg.

-John

========


> G'Day all.....
> Transformer ratings... A HV xfmr (Chicago  STC) is marked- not with AC
> each
> side of CT- but as follows : 920V DC @ 0.3 A and 904V DC @ 0.5 A.
> It did operate into a pair of 3B28 tubes via the one winding which was
> centre tapped.
> Q.....Is there any way of determining/relating secondary AC voltage  apart
> from measuring using the ratings as listed.
> The schematic shows that a DC voltage of over 1kV appears to be used when
> tx
> operating.
> I confess ignorance on this rating description -obviously- but it helps me
> and  the customer know  what he's getting.
> Tks
> Pete VK3IZ
>
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