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Topics - JMPearlman

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Tech Help - Projects Page / CURRENT LOVER 2015 ISSUE
« on: May 02, 2021, 01:37:40 PM »
EDIT: Please see my updated voltage readings and description of the issue lower in the thread. The pictures are still in this original post. Thanks!

Hello All,

I'm having issues with my Current Lover build. I think I have all the proper components, I've checked the orientation of electrolytics, diodes and ICs, I've re-flowed the solder and I'm fairly certain my wiring is okay. So, I've taken voltage ratings of all the ICs and there are definitely problems. Unfortunately, I'm not too capable of telling exactly what is causing the problems. I'd appreciate some brighter minds than mine taking a look. Thanks!

https://www.madbeanpedals.com/projects/_folders/FilterMod/pdf/CurrentLover_2015.pdf

https://imgur.com/a/63xcEfB

I'll list the proposed measurements and my measurements to the side.

IC 1
1. 4.5 -- 5.2
2. 4.5 -- 5.2
3. 4.1 -- 0
4. 0 -- 0
5. 4.5 -- 0
6. 4.5 -- 1.1
7. 4.5 -- 4.9
8. 9.1 -- 10.2

IC 2
1. 9.1 -- 10.2
2. ~ 4.4 -- 4.2
3.~ 4.8 -- 0
4. 41mV -- 0
5. 0 -- 0
6. ~ 4.4 -- 4.2
7. ~4.2 -- .07
8. ~4.2 -- .07

IC 3
1. 9 -- 9.9
2. 4.5 -- 4.3
3. 4.5 -- 3.6
4. 4.5 -- 3.6
5. 4.5 -- 3.4
6. 4.5 -- 3.6
7. 4.5 -- 3.37
8. 0 -- 0
9. 4.5 -- 3.6
10. 4.5 -- 4.3
11. 4.5 -- 3.6
12. 4.5 -- 4.3
13. ignore
14. 4.5 -- 3.6
15. 4.5 -- 4.3
16. ignore

IC 4
1. 4.5 -- 3.4
2. 4.5 -- 3.4
3. varies
4. 0 -- 0
5. 4.5 -- 3.4
6. 0 -- 0
7. 0 -- 0
8. 0 -- 0
9. 0 -- 0
10. 0 -- 0
11. 0 -- 0
12. 9 -- 0
13. 0 -- 6.7
14. 9 -- 9.8

IC 5
1. varies
2. ~ 4.2 -- .11
3. varies
4. 9 -- 9.9
5. 0 -- 0
6. 0 -- 0
7. 7.8 -- 0
8. varies
9. varies
10. varies
11. 0 -- 0
12. ~ 4.2 -- .11
13. ~ 4.2 -- 0
14. varies

IC 6
1. 0 -- 0
2. varies
3. varies
4. 0 -- 0
5. 9.1 -- 10.4
6. 9.1 -- 10.4
7. varies
8. 9.1 -- 10.4

IC 7
1. 4.5 -- 5.2
2. 4.5 -- 0.17
3. 4.5 -- 1.7
4. 0 -- 0
5. 4.5 -- 0
6. 4.5 -- 5.2
7. 4.5 -- 5.2
8. 9 -- 10.4

When the effect is bypassed I can hear the high pitched "airplane taking off" sound, and when the effect is engaged there's a terrible high pitched squeal. Any help is greatly appreciated!

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