hey i got the led to light up but i cant get anything but hum.
http://www.shedradios.com/images/crate_cr-112_04.jpg

at the vcc+ im getting 44 v. almost double the 24 thats supposed to be coming to the IC 2. the only thing before the IC 2 is a 5% 1w R and a led.
ive got 44v going to IC1 also. IC 1 and 2 are supplied by the same trace. could this be a grounding issue? help

hey i rehoused a cr112 and made it a cr 212. i have it wired up like this


i dont know if i have it grounded right or whats going on. i dont know anything about amps and didnt know they would be this much trouble.

i have the little black wire from the fuse going to a screw in the side of the box.

the green wire was attached to the chassis before i tore it apart. the pc board was atttached to the chassis.

i took a wire from the screw hole that attached the pc board to the metal and ran it to a screw. the green wire from the power cord is attached here also.

hey im rebuilding an old cr-112. im changing out the ic's and changed out the opamp. i was wondering about the pots. the pc board has solder pads behind where the pots are soldered to the board. would putting the double pots on the board be benificial or bad? i emailed crate but they havent emailed me back. thanks

hey i came across a kenwood ka- 6000 and a radio amp that went with it. the way i figure it i should have most or all the parts to build my own amp. right? ive built stompboxes but never attempted an amp. is there a how to build an amp for dummies website or book that shows what you need?