Author Topic: switchable regulator  (Read 382 times)

Thewintersoldier

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switchable regulator
« on: January 14, 2020, 08:22:45 AM »
I'm wiring up a test  rig with a RR on a rotary switch for variable power for different effects. I want to further mod it to make the 15v regulator selectable between 15v and 12v. To wire up the two regulators would I just use 2 a 3dpt switch and solder the regulators to each side and wire the center lugs to regulator pads on the RR? Am I overthinking it?
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r080

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Re: switchable regulator
« Reply #1 on: January 28, 2020, 12:32:07 PM »
That should work. You could also just wire a 78L12 on the rotary switch for another position.

Govmnt_Lacky

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Re: switchable regulator
« Reply #2 on: January 28, 2020, 02:36:45 PM »
You COULD do that but remember... you now have DC power and GND running inside the same toggle/stomp. Could be a possible noise and/or zap hazard.

HamSandwich

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Re: switchable regulator
« Reply #3 on: January 28, 2020, 03:23:57 PM »
You could use an LM317 and make it variable! Calculate resistors to put on the rotary for various voltages, or use a pot and a simple digital volt meter. Wouldn't that be neat.