Question re: Switch connections for fuzz face

[Rick899]

I can't get the effect to work on a 1966 Fuzz Face  built from a layout I found on turretboard.com.  I have checked everything several times. All I am asking on this thread is confirmation that the switch connections on the attached diagram I found on this site will work on that PNP fuzz face (diagram attached)  without changes.  Thanks.  

[senko]

If I'm not mistaken and this is just like the old Fuzz Face, you'll have to reverse your power connections.  The FF utilizes a positive ground powering scheme. 

The wiring looks good with the standard stereo jack power switching, DC jack/9V battery switching, 3PDT true bypass switching, and yeah, if this was a negative ground circuit, the LED circuit would be good, too.

Check out the schematic here:
http://fuzzcentral.ssguitar.com/fuzzface.php

[Rick899]

Senko:

Thanks for that link but I know about Fuzz Central. I am using the schematic from that site which is not very helpful because it dopesn't have the switch and DC jack connections. I have gotten the pedal to work on a breadboard but when I add the switch and DC jack the effect doesn't work.  I have spent a lot of time troubleshooting it. Very frustrating.

That is why I would like confirmation that the wiring diagram copied below will work  on the 1966 Fuzz Face whose layout is copied below with out making any changes to the wiring diagram.  If  some of the connections in the wiring diagram need to be modified in order to adapt it to this  1966 Germanium  fuzz face  then I would appreciate it if someone could specify what those changes are. 

For example when you say  "you'll have to reverse your power connections" ...   Do you  mean (in the wiring diagram below)  that the black wire that goes from the DC Jack to the board ground should be switched with the red wire  that goes from the DC Jack to "Power V+" ?

Thanks in advance for any help with this.

[LucifersTrip]

here's a "+" ground example from ggg:

good luck





note that you have "-" going to the ring/sleeve instead

[Rick899]

Luciferstrip: 

Thanks for the switch diagram. I completely rewired it and it still doesn't work. I first tried building the GGG FF5 and I couldn't get that to work either. but when I started the FF5 I used the PNP switch wiring diagram from GGG which is attached below. That diagram is also titled as  "3pdt true bypass with LED indicator DC Jack/battery power. For PNP positive ground circuit"   but  almost all the connections are different than the one you posted.   Now I am even more confused.     Can you (or anybody) explain why they are both 3pdt true bypass for PNP positive ground circuit but have completely different connections?  Thanks.

[snarblinge]

the two diagrams are basically the same thing drawn slightly differently, to my eyes.

the colour of the cable won't make any difference.

you say it was working on the Bread board.

perhaps try adding one thing in at a time.

1st with none of the switch in place or dc jack, just battery going to board, and in and out jacks, does it work then?

then try adding, just the dc jack, still working?

try adding the switch without LED still working?

then add the LED and woo hoo it should all be good to go.

i have built a ton of FFs and every now and then one comes along and screws with you. (doesn't help when you are trying to us only black or only red cable, so it looks pretty)

good luck.

[LucifersTrip]

That diagram is also titled as  "3pdt true bypass with LED indicator DC Jack/battery power. For PNP positive ground circuit"   but  almost all the connections are different than the one you posted.   Now I am even more confused.     Can you (or anybody) explain why they are both 3pdt true bypass for PNP positive ground circuit but have completely different connections?  Thanks.

Those are variations on true bypass. I believe the one you posted is "input grounded"

You can check out the variations here.
http://www.generalguitargadgets.com/index.php?option=com_content&task=view&id=33&Itemid=27