Help with Tonepad Orange Squeezer and MXR Noise Gate

Started by ElectroFreak, July 24, 2005, 08:42:55 PM

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ElectroFreak

I'm using the one off of tonepad, ver2. Here are the voltages I show. I'm using a 9v wall wart. Is it normal for them to put out 12v with no load? I've tried 3 diff power supplies and they all put out about 12-12.5v. I checked all my connections for cold joints and didn't find any.   I can barely hear sound IF I have my dist effect on, clean I hear nothing.  Just has a background hum that increases as the level pot is increased.  I can turn the bias trim and hear a small almost pop sound at one point but never hear any signal come through.  Anyway here is the OS voltages:

V in: 12.5v
IC1(TL072) 1)11.88 2)11.88 3)0 4)0 5)6.7 6)6.83 7)7.1 8)12.5
Q1(2N5457) G)2.12 S)1.53 D)1.53
Q2(2N5457) G)1.49 S)2.14 D)12.5


The noise gate just makes a clipping(?) sound when I turn one of the pots.  Just a bunch of noise here, no signal comes through no matter what I do.  Here is the voltages on the MXR noisegate (tonepad, ver2)

V in: 12.5v
IC1(TL072) 1)3.76v 2)3.76 3)3.76 4)0 5)0.92 6)1.32 7)1.32 8)12.52
Q1(2N5088) C)12.5 B)3.46 E)3.04
Q2(2N5088) C)2.16 B)0.46 E)0
Q3(2N5485) G)2.81 S)3.75 D)3.75
D1 3.76

ElectroFreak

I went through everything again tonight and still can't figure out what's wrong.  Anyone have any ideas based on the voltages?

KORGULL

I can tell you that your orange squeezer's Q1 and noise gate's Q3 don't look operational. Check that the connected resistors are really the correct value.