Looks like a basic pre-amp from a CV acoustic electric. The battery is likely underneath the front control panel, accessed by unscrewing the two black knobs top & bottom of panel. Need a fresh battery to get it working. Then check to make sure all soldered parts are good, and it should work fine.
Thanx Scott - I'll give that a whirl !! :-)
The tell tale sign that there is a battery is the LED.
Yep - sure enough - buried down in there was an old dead battery - plus, I don't know I would have recognized those knobs as knobs - thanx !!!
Well, there are two wires plus the ground coming from the jack - I didn't have a battery so I hooked up to a wall wart with a 9v adapter and tempo'ed a saddle with the rod on a CBG and gave it a go - real bad hum so I guess I'm not out of the woods yet.
Yeah, I'm hoping it is because of the wall wart - but I don't have a battery right now - when I switch polarity it doesn't work (no led).
It seems to work, just very loud hum along with the amplification - I'll search around for a battery.
try flipping the phase from this wall wart if you can, maybe a huge improvement ;)
Do you mean that I should turn the wall wart around ?? It has a polarity switch that when I switch the polarity the EQ doesn't work at all. I'm not sure I'm understanding the terminology.