[Elecraft] Transformers

[Vic K2VCO]

Well, this is the first time I've had this kind of experience. I'd prefer to know the ac 
voltage of the secondary and make my own calculations, at least with transformers intended 
for DC supplies.

On 8/2/2010 4:06 AM, Tom W8JI wrote:

> Transformers are commonly spec'ed under full rated load current, much
> less often under no load conditions. After all, people generally want to
> know the voltage under operating load.
>
> Because of ESR losses in small cheap transformers, it would not be
> unusual to find a noticeable step-up ratio to the secondary. To confirm
> that, turn it around and excite the secondary and measure the primary.
>
> 73 Tom

-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/