the squarewave Moderators: altitude, adafruit_support_bill, adafruit, hamburgers, phono

[blinky909]

i can not use the squarewave of my x0xbox, it really sounds nothing like the hollow sound of my 303. any suggestions on getting that classic hollow sound?

[antto]

sample?
it's the pulse width probably.. this is the most noticable aspect of the square as it's tied to frequency

[guest]

try a higher beta transistor for q8

[Computer Controlled]

How high of a beta is usually recommended? I have a 320 in mine, and it's not quite 303 sounding.

[guest]

that should be fine
although beta measurements vary from meter to meter

you can try a higher value one and see if it changes things
otherwise c11 would be my next guess
the electrolytic caps are only 20% tolerance at best

[Computer Controlled]

Have you gotten this resolved yet? I figured out on mine i used the wrong transistor at Q38.