HEY JACK---'60's FUZZ QUESTION

[brian wenz]

Hello Hello--
   I tried this a couple of days ago but screwed it up..........
The "60's style Fuzz" on the AMZ site looks interesting to me but I was wondering about using different si. trannys for Q1 and Q3.  [3906, 3904, etc. ??]  Also, can you suggest any resistor value changes to  fine-tune the circuit to these different trannys??
Thanks much!
Brian.