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Muffintop problem, helpme please!!!

Started by panchokunstmann, December 27, 2013, 05:31:41 AM

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panchokunstmann

Hi, how are you?.

I need your help! 8) 8) 8) 8)

I built the Muffintop, the problem I have is that it does not sound.

I used the Audio Prove and I noticed that the sound arrives until G of Q1 ( blue line in the photo) :


*the red dots are points that touch the audio prove and did not sound


I have taken all voltages of the transistors, are:
( power supply voltage: 8.99 )
Q1:
D:8.99
G:0.09
S:0.00

Q2
D:8.99
G:0.09
S:0.00

Q3
D:8.99
G:0.09
S:0.00

I reviewed 3 times all components and everything is in order.
the only thing different that I'm taking are the 2N7000 instead of BS170, obviously 180 ° turn around

please help I do not know where to start and what to do first.

thank you very much

Francisco


more pictures: 




panchokunstmann


panchokunstmann


I tried with a few 2N5457 and nothing   :-[


icecycle66

I don't really have any great advice.

It looks fine in the picture, but did you check to make sure there aren't any solder bridges from the signal path to the ground?  If there is then your signal is getting grounded out.

panchokunstmann


thanks for helping

I checked the pedal and I have no solder bridge or anything like that.

I really did not know what to do

jimilee

It's hard to tell, but do you have 2 lugs grounded to 2 separate grounds on the pcb?
Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

panchokunstmann

Quote from: jimilee on December 29, 2013, 05:55:23 AM
It's hard to tell, but do you have 2 lugs grounded to 2 separate grounds on the pcb?


Let me see if I understand.

the connection I made was that of friendly Mr.Paul and your website:  diyguitarpedals.com.au,
photo: 

I put all the ground's in the slave is the only difference with the photo

I made that connexion to test the effect without the 3pdt