[sdiy] Unmarked transformers

[Roy J. Tellason]

On Monday 04 October 2004 03:53 pm, Oren Leavitt wrote:

> Series connected light bulbs and a variac have been my best friend for
> testing unknowns and powering up old equipment for the first time.

Heh.  My variac is built into a box with a light bulb,  some switching,  so I 
can select normal/boost (130v),  a pair of binding posts for measuring the 
current drain with a meter,  plus fuse.

One of my most-used bits of test equipment,  that box.  :-)