Need Ibanez Overdrive II Hummingbird Schematic

[soapamp]

I'm looking for Ibanez Overdrive II Hummingbird (od850) narrow body which install MC1458 opamp.

[George Giblet]

I believe this either it or something very close:

http://home.hawaii.rr.com/stompbox/IBZ-OD2.jpg

You should check it.  The LED + resistor + zener probably aren't in your unit.
(there was another schematic on the web called OD2 but it had quite a few errors.)

One thing I would like to know is whether the diodes are silicon or germanium?

[Greg_G]

I believe this either it or something very close:

http://home.hawaii.rr.com/stompbox/IBZ-OD2.jpg


One thing I would like to know is whether the diodes are silicon or germanium?

If the schematic you posted a link to is right... it says Ge diodes.

[soapamp]

thank.. for the schematic.   I think it should be correct.  I will check with the original unit of my friend.   

[George Giblet]

> If the schematic you posted a link to is right... it says Ge diodes.

Yeah, I know!  The "erroneous" schematic (no link) shows silicons.

If I had to make bet I'd go with the Ge diodes because:
- Patrik probably would have got that right
- The first stage is more or less an MXR distortion plus, which used Ge's

but...you never know...