TECHNICS SP10 MK3 POWER SOURCE / SPEED CONTROLLER

If you can find a 100V unit, there is a simple method of making them work on 117V without an isolation/stepup transformer.

That might open up your possibilities.

Its simple: You can use a small power transformer that makes 20 volts to 'buck' the US AC line voltage down to 100volts (120V - 20 =100V).

The transformer need only handle the current required which is not a lot. The result is that it would be so small you should be able to find room in the power supply, despite its rather tight construction.

Any competent technician will know how to set up a bucking transformer connection.

Lew, Just for the record the bucking technique I described does not use an isolation transformer and is a lot less expensive- literally can be done for under $20.00 in parts.