I finally had time to get voltages on all the ICs. I’m not sure about the names of the chips. Some of these values really varied a lot as I was measuring.

741

1 .1 mv
2 6.6 v
3 8 mv
4 0
5 0
6 20 mv
7 18.8 v
8 5 mv

4558

1 3.7 mv
2 1 mv
3 0
4 0
5 0
6 & 7 7 mv
8 .2 mv

SAD1024

1 0
2 5 mv
3 1.5 mv
4 0
5 .1 mv
6 0
7 .1 mv
8 2mv
9 .1 mv
10 2 mv
11 .1 mv
12 0
13 0
14 1.5 mv
15 5 mv
16 0

7611

1 18 mv
2 17 mv
3 0
4 .1 mv
5 0
6 0
7 0
8 0
9 2.8 mv
10 0
11 .1 mv
12 2.8 mv
13 1.2 mv
14 .1 mv

LM339

1 .2 mv
2 .2 mv
3 .2 mv
4 .1 mv
5 .1 mv
6 1.2 mv
7 .1 mv
8 0
9 0
10 .2 mv
11 0
12 0
13 0
14 5.5mv

I just had the foot switch and output jack leads break off the boards. I guess moving it around was just too much for them old wires. Where does the brown wire go on the board? I’ve been unable to find a schematic except at that German site that won’t load.

Thanks Ron. Hey, I have a question. I just bought my Electric Mistress, and it needs a new SAD1024 chip. I’ve ordered one, and I wonder if you can give me any pointers on what to replace or test so I don’t fry the new chip. I plan to replace the opamps and all the electrolytics. Anything else I should be looking at?