[AMRadio] Transformer help

[wwd at netheaven.com]

Putting 240vac on the full primary will get you via a solid-state bridge 
(choke input) about 3400 vdc. Which is probably just what you wanted for a
'big' rig. I'd insulate the core from the chassis with sturdy standoffs.
Also caution signs since a secondary short to core will leave it hot to
chassis! Always  go in first with your hv probe! It will probably last
forever. Good luck. Bill N2KQA

> Gary Schafer <gschafer at mediaone.net> said:

>I wonder if anyone can help identify a transformer for me.

>It is a plate transformer with what looks like a hypersil (sp) core. It
>has a single primary with 3 taps. Not sure if it is rated for 120 or 240
>volts. With 120 volts I get 1900, 1770 or 1685 volts out. No center tap
>on secondary.
>The only numbers on it are:  AA 3883  and S179027. Do those numbers mean
>anything to anyone ?

>It is probably mid 70s vintage.

>Also does anyone know how I can tell if it is ok to run on 240 volts
>rather than 120 volts other than amount of smoke?

>Thanks
>Gary  K4FMX


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