Author Topic: Jumpers...and more FuzzFace questions....  (Read 2483 times)

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Outlaws

Jumpers...and more FuzzFace questions....
« on: February 18, 2005, 01:34:54 PM »
So on the GGG FuzzFace PCB layout there is a jumper.  Is it just me, or is this just because they couldn't run a straight path and needed to get the signal there somehow so their needs to be a wire conencting the two?  There isn't any fancy other reason for this is there?

EDIT:
Let me rephrase...
On some other websites it looks like they couldn't run a striaght wire from A->B becuase they had cross traffic of other wires so they needed to "jump" over a section.

For the GGG site, it looks like they are just using a "one size fits all" circuit board layout, so they needed two sections connected.


Is that right?

http://www.generalguitargadgets.com/diagrams/fuzzface_lo_nn.gif

petemoore

...
« Reply #1 on: February 18, 2005, 04:51:14 PM »
Interesting diagram and question.
  Only thing I can think to put there would be a small resistor like 100ohm as per YAFF. What that would do to the 22uf cap function [the only other thing I see connected to that 'ground jumper' I don't know...reduce current there I'd guess.
  Why Was it drawn this way ?
  What would putting a large value cap do there?
  EZ enough place to try placing a small R across...can Always Jumper that with smaller to no Resistance.
Convention creates following, following creates convention.

Outlaws

Re: ...
« Reply #2 on: February 18, 2005, 05:19:58 PM »
Quote from: petemoore
Interesting diagram and question.
  Only thing I can think to put there would be a small resistor like 100ohm as per YAFF. What that would do to the 22uf cap function [the only other thing I see connected to that 'ground jumper' I don't know...reduce current there I'd guess.
  Why Was it drawn this way ?
  What would putting a large value cap do there?
  EZ enough place to try placing a small R across...can Always Jumper that with smaller to no Resistance.


That is a bit over my head?

So I am missing something?  Nothing actually goes there unless I felt like experimenting with something there right?

dosmun

Jumpers...and more FuzzFace questions....
« Reply #3 on: February 18, 2005, 07:51:56 PM »
I think the jumper is there because they use the same board for both PNP and NPN trannys.

petemoore

..
« Reply #4 on: February 19, 2005, 10:43:58 AM »
I don't see how that would make it any easier to wire for Neg or Pos Ground FF...only the PS and polarized caps need a polarity inversion for that...
  I still don't see why that isn't just a 'blue line' like the rest of the traces.
Convention creates following, following creates convention.