| Author | Message | ||
     Sean Borton (codamedia) Username: codamedia Registered: 03-2014 |
This is on a 212 Sixty Five Chassis #2475-65 SS Phase Inverter. (from 1979) I suspect I have a failing IC at the start of the normal channel (IC1). When I turn up the volume (on the normal channel) with nothing plugged in, I can hear some interference, yet when I turn up the Reverb / Vibrato channel - it is very quiet. After reading a few other posts, it was suggested to move IC5 (reverb driver) to the IC1 position. How do you remove these IC's on the 2475-65? They are the circular LM307H but appear to be on a riser or socket... Do they pull out like the later models with standard looking chips - or do I have to unsolder them from the bottom? | ||
| Mike Kaus (mm210) Username: mm210 Registered: 05-2006 |
They are in sockets. Pull gently. If they break, you will have a hell of a time finding replacements. Most people are using brown dog adapters and using contemporary 8 pin IC's with the socket adapters. Make SURE you orient yourself with HOW they go in the sockets(direction) Mike | ||
| Sean (codamedia) Username: codamedia Registered: 03-2014 |
Thanks for the info Mike.. I thought they were in a socket but didn't want to tug too hard until I new for sure... Out of curiosity, are those TO-99 sockets? | ||
| Mike Kaus (mm210) Username: mm210 Registered: 05-2006 |
Yes. |