What is this odd little box I've been storing for years?


I received this switch/pot a few years ago with a used preamp and have never been able to identify it. When I asked the seller he said he didn't know either, he just thought it was part of the preamp (it's not). I wish I could post a picture here - but it's about a 3.5"black cube, with an older brown AC cord, an on/off rocker switch, fuse holder and small attenuator pot on the front. I though it might be a wireless remote switch for a turntable, but can't find any similar images online. Any ventured guesses would greatly helpful
Glenn 
gwbeers
So wait, I'm having trouble. It has a power cord, and no other electrical connections to the outside world??

From your description, this box has only one electrical connection, a power cord.

It reminds me of the "parallel line conditioners" of old. These devices were supposed to clean your AC line power.

Two examples that I can recall are the Tice Clock and the Coherent Systems Corp EAU-1 Electraclear.

Audiogon has lots of comments about the Tice Clock. Here’s one short thread --

https://forum.audiogon.com/discussions/anyone-remember-the-quot-tice-clock-quot-controversy?highligh...

And here’s an old Audiogon listing for the EAU-1 --

https://www.audiogon.com/listings/ac-conditioners-coherent-systems-corporation-eau-1-electraclear-pa...

Unfortunately, I could not identify your particular box. (Dunno if a pic would help either).

Good luck.