grrrrr
i got it set up, but i get no signal through the headphones. just pure hum. i'm gonna check all my connections, but here's my schematic as of now. does anybody see where i went wrong? I added a DC jack for a 9v input. there are 2 connectors that are "normally closed", and when the DC plug is in, one of them is the shell and the other is not connected. the node labeled "dc jack center pin" is not involved in the switching.
the reason i added this is so that when my 9v adapter is plugged into it, the adapter powers it. then when it is removed, it goes to battery power. right now i get no signal on either power source. any help? ive done plenty of continuity checks
i wonder, was i supposed to use a heatsink when soldering my chip? cause i didnt. could i have burned out the chip? and how do i check for that?
ps. when i touch the pot shaft (or even put my finger near it) the hum gets louder. im using a plastic enclosure(all radio shack has, and my altoids tin won't fit a 1/4 in jack).
EDIT: ok, i didnt change anything, and now with the battery supply it sounds like an extremely low-fi fuzz box. and the pot taper has problems, which, btw, it has never done while in the gain-control configuration. there is no sound in the power supply operation (but i'm in the process of correcting that) can anyone spot the reason for my fuzz ?