How many transistors in Millenium 2 circuit?

[Pushtone]

I'm a little confused because I see a second transistor on some of the documents at www.geofex.com but not on others. Is Q2 (2N3904) optional?

This pdf shows the M2 circuit with two transistors. See # 5 after Millenium Prime.
http://www.geofex.com/Article_Folders/Millenium/The%20Next%20Millenium.pdf

This link shows the M2 with one transistor.
http://www.geofex.com/Article_Folders/Millenium/millen.htm

And I just noticed this... on Geo's PCB layout, look at the "Actual Size" image. There is another transistor hiding in there that does not appear in the blowup.
http://www.geofex.com/Article_Folders/Millenium/mill2bd.gif

Thanks in advance
Pushtone

[slacker]

The low leakage diode is made out of the second transistor. It's all explained here http://www.geofex.com/Article_Folders/Millenium/millen.htm read the bit at the top of the page
You can leave it out but it protects the Mosfet from static and spikes.