Stancor line adjuster ??

[rafe]

This is a hefty transformer with a 2 prong plug on one side and a two prong outlet on the top. It has an 8 position switch on top 45 v to 150 v It has a voltmeter built into the front 0-150 v 10 v increments with the 120 being red. What is its purpose? Isolation Transformer??? Quasi variac ??

[sluckey]

Pictures, model number?

Sounds like a bench transformer with switched secondary outputs. Use your ohmmeter to see if the output is isolated from input.

[rafe]

I forgot to write down the model # and I'm unable to go back out to the shop because of rain .....lot's of rain inundated with rain ....Too much rain     , I'll post them tomorrow hopefully with a photo ,,,,and I'll check continuity

[rafe]

I checked e-bay same model same one what is it for????SUPER RARE VINTAGE STANCOR A. C. VOLTS 0-150 METER STANCOR TRANSFORMER PV 6441 | eBay

[sluckey]

I highlighted your transformer in the attached pdf...

[rafe]

It's on the "Isolation Power" page, so my guess is that it could be used with a 117v source as an isolation trans. ? The output recepticle being  permanently connected to the 115 v tap has me questioning that ?? if there is no continuity when off on all settings it should be alright as an I. T. ?

[sluckey]

It's an autotransformer so there will not be any isolation. Read the description just above section B.

[rafe]

Thanks I had read that , it really did not give me much to go on to be honest. It looks great though I picked it and several VTVM's a signal generator, resistors and 1% resistors at the flea market at a low price. I do appreciate your help on this . I'll keep it around in case they cut back our voltage I'd be lost without a tube amp 

[PRR]

It's 6 pounds. As an isolation transformer that's about 40VA at most; but this is 150vA. So it is, as said, an auto-transformer, no isolation.

15V steps are remarkably huge.

65V and 145V inputs are pretty silly. If that 145V was coming out of your walls, 115V incandescent lamps would be BRIGHT and last about 2 days. OTOH, 65V won't toast bread or light an incandescent brighter than a birthday candle.

It is really hard to see what market Stancor had in mind.

If you reverse the genders, it could turn modern 125V down to 70V, brown sound.

[shooter]

If you reverse the genders

maybe "stepped" electric fencing, 65vac on the perimeter, 145 for inside ring