Re: [CAD_CAM_EDM_DRO] Re: looking for a 20vac transformer resource

Hi Roger,

Good points!

By the way, old BIG transformers from microwave ovens can have their
secondaries REMOVED, and a low voltage secondary wound to suit your
needs. Old Ham trick!

I would suggest that you change your PC's time/date, I almost missed
your email.

Alan KM6VV


Roger Hampson wrote:

>
> To get the right voltage from a transformer, if it is a open frame wind 1
> (one) turn around the core and measure the voltage on this turn.
>
> Next either add or remove turns to get the right voltage
>
> Example if you have 0.5 volts across one turn then your turns per volt= 0.5
> if you have a 20 volt transformer with 0.5 turns per volt then add 3 (three)
> turns to bring the voltage up to 21.5 volts X 1.414 = 30.4 volts DC
>
> This will work with any transformer that you can feed a wire around the core
>