Preamp Retrofit with Motorized Volume Control

Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

I've done much searching on this topic but haven't found exactly what I'm looking for. I want to update my old NAD 1020 with a motorized volume/remote. Installing the volume control itself seems straightforward but I'm stumped about how to get power to it. I want to tap into the preamp power supply and connect an LM317 for the 5 volts needed but am not sure what the best way to do this is (or even if this is the best option). I'm considering an ALPS 27K or maybe one the kits off ebay.

Schematic of power supply is below.

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Topic - Preamp Retrofit with Motorized Volume Control - Brody 07:53:09 04/01/16 (6)

RE: Preamp Retrofit with Motorized Volume Control - JKT 22:44:30 04/02/16 (2)

RE: Preamp Retrofit with Motorized Volume Control - Brody 04:40:40 04/04/16 (1)

RE: Preamp Retrofit with Motorized Volume Control - JKT 23:35:41 04/04/16 (0)

Nah - Awe-d-o-file 13:29:23 04/01/16 (0)

RE: Preamp Retrofit with Motorized Volume Control - Ugly 09:34:28 04/01/16 (0)

RE: Preamp Retrofit with Motorized Volume Control - fmak 08:00:24 04/01/16 (0)

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