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Current Lover trim pots

Started by hagcel, February 06, 2013, 05:46:24 AM

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hagcel

I finished off a current lover tonight.

It has a really great sound but more subtle than I would like and more subtle than my electric mistress. Almost sounds more like my deluxe electric mistress.

To get a great / more extreme  flange tone I end up with noise at the bottom on the flange sweep.

Both trim and bias have a very small usable range. Only around extreame clockwise (1). Trim has a great sound in the middle of the trim pot but I can't bias out the sweep noise.

Does this all sound correct?

This is a 3007 version.

One other thing. I added D4, D5 and C5. I realized I shouldn't have and I just clipped them out of the board. I did jump C5 and I did jump IC2. Do I need to suck the solder out of D4 and D5 or is it fine as is?

I can change out the 4558 for a TL072 without issue? I had done that in my DMM and DEM with nice results but from some reading I had done that might have only been a good change because of the low input impedence, maybe it won't benifit this circuit?

Thanks!

hagcel

#1
9V in at board: 9.52
Ground in at board: .3

IC voltage readings:

IC 1 4558 (Starting at top left circle. Space starts the top right column of pins)

4.75
4.75
4.33
.3

9.45
4.71
4.73
4.68

IC 2 MN3007

9.44
4.75
4.28
Constantly moving over +9v counting up

5.1 - 5.3
5.1 - 5.3
4.7
.4

IC 3 CD4049UBE

9.43
4.65
4.70
4.70
4.70
4.68
4.74
.5

moving around
4.65
4.72
moving around
4.67
4.67
3.67
4.67

IC4   CD4013B

4.71
4.74
moving 4 - 9v
.3
4.73
.3
.3

9.47
9.47
.3
.3
.3
.3
.3

IC5  LM324N

4.74
4.74
4.69
9.49
moving 1.2 - 1.9
moving 1.2 - 1.9
moving 1.7 - 3.9

moving 3 - 5
4.37
4.35
.4
moving 3 - 4 - Overlimit
4.35
moving 1 - 3 - Overlimit

IC6 LM311N

.4
moving 1 - 3.5
moving 1 - 2.5
.5

9.45
moving 5 - 7
9.45
9.45



Q1 Left to Right on the flat side
5.4
6
9.43

Q2
1.01
1.57
6.06

Q3
9.17
8.57
jumps between 1.3 up to 3.5

trickpony

try 12v adapter. You'll have to rebias but you'll get much more usable range.