Modding a CAD GXL3000 Microphone (help needed) w/pix

[ScottSelfridge]

OK, I stand corrected. This looks like a derivative of the U87Ai circuit, so I opened mine up, and yes there are ceramic capacitors in the DC to Dc converter portion of the circuit. No tantalum caps, though. Another difference is the U97 uses polystyrene caps at critical parts of the circuit.
Craig

Beautiful Craig. Thank you!
Anyway to correlate what caps are in your 87ai that would relate to this mic?
Are the Tantalum caps, that are in the CAD, polys in the 87?
Thanks again.

 

[craigmorris74]

That I can't tell. They're not exactly the same I'm sure, but they're definitely in the same family. Couldn't find an online schematic, so the best thing for us to give advice would be for you to give a shot at a hand drawn one. Shouldn't be too difficult I don't think. At least the first board you have pictured.