diytube.com

So I have all the necessary materials to breadboard this, but what is stumping me is the connections it has going into the opamp; pinouts nor a real diagram is given for here, so I'm wanting to know if anyone with a magical crystal ball can decode this... jk, I know this sounds awkward, but I wonder how this achieves a volts/octave response?

http://www.cgs.synth.net/tube/pic/ts23schematic.gif

The biggest disadvantage of tubes is that they are more linear than transistors ...

The only stuff I see that could give a log/exp-curve are the diodes hooked up to V2 and V3. My guess.

I see..... I emailed metasomix and they said it was a 741. Of and btw those are capacitors not diodes, I know that confused me too at first lol.