SOLVED Germanium fuzz not working

[Johnnyorange500]

Hi,



I’m having a bit of trouble with my Germanium fuzz face build. I seem to think I’ve soldered every wire correctly but I’m not getting any fuzz through the pedal. There’s just a dry guitar signal coming through the bypass and it also switches it off too. So I’m guessing the foot switch and input and output jacks are fine. I’ve just bought a new 9v battery too. All the capacitors and transistors are giving off an electric reading so they haven't burned out. I’m completely baffled as to why it’s not working. Would be very great full for some advice.



Johnny

 

[Johnnyorange500]

Ok, no worries will do. Excuse the smaller tone pot it’s still the same value 1k linear. I’m no expert, so also excuse anything that might not be up to standards.

 

[Johnnyorange500]

Managed it

 

[peccary]

It keeps saying my photos are too large for the server???

Try sending them to yourself in your messaging app. That should compress them, then copy them from there and upload those. That works pretty well for me.

 

[Johnnyorange500]

We need voltages too.

Hi, sorry you mean test the board with a multimeter? For voltage?

 

[Johnnyorange500]

Sorry can you help me with the right symbol to select on my multimeter for each of the different voltages I need. Thanks

 

[Johnnyorange500]

Sorry I understand now I need to take a reading of each leg but what setting 2000 oms???

 

[EGRENIER]

Sorry I understand now I need to take a reading of each leg but what setting 2000 oms???

On voltage, DC current, not AC.

 

[Johnnyorange500]

Sorry guys I’m pretty new to using this so if you could point me in the right direction to what selection to use.

 

[EGRENIER]

Sorry guys I’m pretty new to using this so if you could point me in the right direction to what selection to use.

 

[EGRENIER]

View attachment 31258

Well we can't be both wrong

 

[EGRENIER]

View attachment 31258

BTW I'm surprised that no one asked for the solder side of the perf board... Unless it's there and I missed it.

 

[Johnnyorange500]

Bugger!! There’s no reading!!! It’s just staying at 0.00

 

[benny_profane]

Is the circuit powered? Do you have the leads connected appropriately? Touch one probe to one of the screws on the board and the other to the part you're trying to measure.

 

[EGRENIER]

BTW, I'm looking at the pictures and it looks like you sent the red wire to the pot ? and black to the board. I would suspect that to be reverse polarity. You red should be the + and go to you board.. no ?

 

[EGRENIER]

Bugger!! There’s no reading!!! It’s just staying at 0.00

I don't see any protection diode in there, but if you have one and my theory of reverse polarity is right, that would explain the 0V reading.

 

[benny_profane]

BTW, I'm looking at the pictures and it looks like you sent the red wire to the pot ? and black to the board. I would suspect that to be reverse polarity. You red should be the + and go to you board.. no ?

Positive ground? Also, I think this is a production unit.

 

[EGRENIER]

Positive ground? Also, I think this is a production unit.

Well standard 9V battery connectors would have positive on the red wire and negative on the black wire. I can't see a red wire going to the board form the battery, it look like it's going to a pot or to a jack... that would make me think he's sending positive to the ground rail and the ground wire to VCC rail.

 

[Johnnyorange500]

Well standard 9V battery connectors would have positive on the red wire and negative on the black wire. I can't see a red wire going to the board form the battery, it look like it's going to a pot or to a jack... that would make me think he's sending positive to the ground rail and the ground wire to VCC rail.

Hi, so I’ve made a mistake? What do I need to do to rectify it so it will work. So follow what you’ve said on this about changing the battery wires.

 

[EGRENIER]

Hi, so I’ve made a mistake? What do I need to do to rectify it so it will work. So follow what you’ve said on this about changing the battery wires.

Ok before you change anything please confirm the following:

Where does the red wire of the battery connector go ?
Where does the black wire of the battery connector go ?
If you put your red probe on the solder point of the red wire battery and your black probe on the solder point of the black wire, do you read +9V or -9V ?