TECHNICS SP10 MK3 POWER SOURCE / SPEED CONTROLLER



Speed Controller for Technics Mk3 lost in shipment, so I need a replacement.

Anyone out there know someone who has one?

Happy to reward a successful referral.

What should one of these cost these days?

Thanks very much in advance for any help you can provide.

Best,
128x128cdk84
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.
Many factors are to be taken into consideration, much will depend upon geographic location, private or commercial seller, operational and cosmetic condition, whether or not the unit is original or restored (including the origination of service) and native voltage operating requirements. The rarest type, universal selectable 110v/120v/210v/220v/50Hz/60Hz voltage Technics Sp10Mk3 power supply will most typically demand higher prices than the most common 100v/50Hz/60Hz power supply or even the less seldom seen 120v/60Hz North American model. Considering the vital role of the Sp10Mk3's power supply, which of course contains the primary logic, drive and controller boards, its value will well exceed that of just an orphaned Mk3 motor, platter unit. I am afraid there is no etched in stone black and white answer, however, the market will usually dictate the demand and subsequently the asking price of rare and desirable components such as this.
Atmasphere,

Would you describe this method of conversion or some source of information?

Thank you,

C
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.