Probobly right Richard. I tend to *chase my tail*. Used a high gain tranny...had oscillations...used a resistor on input to tame it....then figured I should use a low gain....then decided I wanted even less gain....etc....
Too bad I never made notes....I learned a lot....& have forgotten nearly everything...HA!
LOL, sounds like my usual method!
It's been a while since I messed with the Bosstone. Here are a few tricks, nothing new, they have all been noted here at one time or another.
Oscillating - Small resistor 100 ohm (or so) between Q1 E and ground.
It's easier to use a 500 ohm trim pot, crank up attack and vol. then adjust until the oscillation stops.
Add a Gain control - At Q1 E use a 1K pot wired as a variable resistor and 100 ohm (or so) fixed resistor in series to ground.
Again its easier to use a 500 ohm trim pot instead of a fixed R. Set the gain pot at 0 ohms then adjust the trim as above.
Transistor selection -
Use low gain transistors both Q1 and Q2 under 200Hfe.
Personally I like Q1 around 100 Hfe and Q2 around 150 Hfe. I had a limited selection of transistors in those ranges so I was never really quite able to nail that down.
Have not tried them but 2N3903 / 2N3905 are in the ball park gain wise

Plus they are cheap and still in production
