It's an Ibanez CP-835 compressor II from the 0-series. It's made between 1979 and 1982. The battery cover says Maxon. J4zz 4d and I found it in a shop in Paris last weekend. I was (kinda) looking for a compressor and after trying it I bought it. I tried it with the band last night. It squashed my tone a bit and I need to fix that with tweaking. I fed it with a very hot 18 Volts EMG pu. The cutting it did was great. It thickens like a mofo. With the other toys: I already did some research about it, but I can't find any bass players that uses this pedal. Anybody some info?