This is such a great unit, so well designed and built.  The owner mentioned the input pot was not working. The unit arrived with what looks like impact or shipping damage.  The left corner of the front panel place was bent slightly back.  On inspection I found the input pot sheared off.

I found the  sheared input pot first...

3 PCM 41 units in for repairs.  These are some of my favourite delays, many fond memories playing with these in feedback.  

This baby came in for a little inspection this week. The owner was worried that it was a ticking time bomb, as the start sequence would randomly take longer some days and not others. He mentioned, when cold, the unit could take 7-to 15 relay clicks to start. When warm and operating normally he would hear 3-5 relay clicks.

I was just given the Alesis Multimix 8 USB but my friend had accidentally thrown out the power supply with some other old electronics. As it would turn out, this is very hard to find. There are no after-market power supplies made, as far as I can tell. The specs are 18V 500 mA and here is a picture of what I need: