OK built the triple wreck from here: http://tagboardeffects.blogspot.com/2012/10/wampler-triple-wreck.htm
Bypass works. nothing from effect with or with out boost. nothing with boost on and no effect.
Schamatic
(https://s15.postimg.cc/giin2y5s7/wampler_triple_wreck.gif) (https://postimg.cc/image/giin2y5s7/)
pics
(https://s15.postimg.cc/ltxjo07dz/20180906_002336.jpg) (https://postimg.cc/image/ltxjo07dz/)
(https://s15.postimg.cc/e16vw1w9z/20180906_002459.jpg) (https://postimg.cc/image/e16vw1w9z/)
voltages
8.5 at the jack
tl074
1 7.62
2 7.62
3 5.55
4 8.22
5 5.56
6 7.62
7 7.62
8 7.57
9 2.21
10 2.21
11 0
12 2.21
13 7.08
14 7.82
7660
1 7.63
2 7.28
3 5.56
4 0
5 8.20
6 4.57
7 7.64
8 8.24
q1 on boost
e 6.57
b 7.63
c 8.33
checked for shorts bad solder joints nothing found..
stomp switch wiring is like this
(https://s15.postimg.cc/m7yvno4d3/Offboard_Wiring_with_switchable_pre-effect_booster.png) (https://postimg.cc/image/m7yvno4d3/)
if you need more info please ask
Welcome back. You have been busy indeed ;D
I've only had a quick look but the 4.5Volt rail seems high according to your measurements. Fix this;
(https://s22.postimg.cc/84r9z2ril/Trip_Wrek1.jpg) (https://postimg.cc/image/84r9z2ril/)
Test and remeasure the voltages please. Also you referred to an 7660 IC...It's actually a TL072
tl074
1 2.03
2 2.03
3 1.45
4 8.87
5 1.47
6 2.08
7 2.08
8 1.61
9 2.19
10 2.20
11 0
12 2.21
13 4.51
14 1.58
tl072
1 2.05
2 2.05
3 1.52
4 0
5 2.17
6 2.01
7 2.02
8 8.93
boost
q1
e 7.35
b 6.96
c 9.28
your right on the 7660 must be the other one i'm working on
Voltages are still a bit off. But this may help;
(https://s22.postimg.cc/gfhokr7cd/Trip_Wrek2.jpg) (https://postimg.cc/image/gfhokr7cd/)
look close lower leg of resistor cannot go `1 lower there is a 10 k . your right a bout cap
Ah, I am suffering from a minor dimensional displacement - imagining things.
The resistor is correctly placed but the 220pF cap, the link and the diode are not.
Check closely. The diode is too long. The cap and the link are the correct lengths but are both placed one hole lower than the layout specifies. The diode's anode lead needs to go up one hole.
74
14.51
2 4.51
3 3.05
4 9.02
5 3.06
6 4.51
7 4.51
8 4.51
9 4.51
10 4.49
11 0
12 4.49
13 4.51
14 4.51
72
1 4.52
2 4.52
3 3.08
4 0
5 4.49
6 4.52
7 4.52
8 9.03
q1
e 7.41
b 7.02
c 9.38
Voltages are looking better. Boost board seems a bit funny.
For the moment try to get a signal into the main board and a signal out of it - bypass the boost board. Just to see if things are getting better with the main board.
Test the board and let us know what happens.
got sound from board
and from boost!!!
Thanks
Excellent :icon_mrgreen:
Now the big question. Does it sound good?
will have to try it out after wife gets up
Sound thinking there. Self preservation is a good idea.
Let us know how it sounds.
something is wrong with booster
Getting full voltage out of led led changed resistor and still there
found it bad ground
the finished pedal
(https://s15.postimg.cc/4q89ezgyf/20180906_034724.jpg) (https://postimg.cc/image/4q89ezgyf/)
Wow. Nice job :icon_mrgreen: