peach fuzz

[vdm]

hey i redrew this schem without the switching, and it seems misdrawn, or at least to be a little strange. im not sure how/if it works, so if anyone has any ideas it'd be greatly appreciated.

and if anyones built it that'd be even better!

thanks,
trent

[casey]

hey i redrew this schem without the switching, and it seems misdrawn, or at least to be a little strange. im not sure how/if it works, so if anyone has any ideas it'd be greatly appreciated.

and if anyones built it that'd be even better!

thanks,
trent

hey trent, i redrew that schem a year a go....that's a basic fuzz
that's similar to a fuzz face.  it does have wierd switching....that
is what the original had though....so i just kept it the same and
just redrew it to a friendlier and more readable format.

[casey]

i would keep it like the original though...the original had switching
from one stage to two stages......
i know it looks unorthodox......you could actually just keep the switching
as it was and add true bypass....

[petemoore]

Casey Wrote:would keep it like the original though...the original had switching
from one stage to two stages......
i know it looks unorthodox......you could actually just keep the switching
as it was and add true bypass....
 
 I'd like to take a look at the 'stage switching' schematic diagram!>?

[casey]

Casey Wrote:would keep it like the original though...the original had switching
from one stage to two stages......
i know it looks unorthodox......you could actually just keep the switching
as it was and add true bypass....
 
 I'd like to take a look at the 'stage switching' schematic diagram!>?

i probably used the wrong terminology!  


http://photobucket.com/albums/v324/caseyseffectpage/?action=view¤t=peachyfuzz.gif

it's the schem with the fingers.....how does this switching work?

[brian wenz]

Hello Hello-
  Are there any suggested values for Q2's collector or the volume pot??
Thanks-
Brian.

[brian wenz]

Hello Again--
   Are those 2N3565 trannys newer ones or the old , original ones??
 How old is this circuit??
Thanks-
Brian.

[petemoore]

I'll go out on a limb and estimate ~40 years maybe more.
 the original schematic looks like it was printed in the 60's.

[casey]

Hello Again--
   Are those 2N3565 trannys newer ones or the old , original ones??
 How old is this circuit??
Thanks-
Brian.

this circuit appeared in popular electronics in  February 1968.  Original design by: A. Leo.

Here is the breakdown of components as it is a little hard to read:

Q1: 2N3565
Q2: 2N3565
R1: 47K
R2: 15K
R3: 470 ohm
R4: 680K
R5: 4.7M
R6: 50K
R7: 6.8K
R8: 68K
R9: 10K
C1: .27uf
C3: .47uf
Appears to be no C2......?

[brian wenz]

Hello Hello-
   Yep, older circuit!   This one uses the same trannys as the Sam Ash Fuzz from the same era.   I  noticed that there is a Treble booster circuit in the same collection of schematics  [another "A. Leo" one...]
Has anybody built the fuzz yet??
Thanks-
Brian.

[petemoore]

Please post any progress reports on the Peach Fuzz...it looks interesting!

[brian wenz]

Hello Hello-
    What really got my interest was that 680K  between the collectors!
Brian.

[casey]

Hello Hello-
    What really got my interest was that 680K  between the collectors!
Brian.

why?  im asking out of ignorance...

[brian wenz]

Hello Hello--
   That resistor is really high.......there must be something about this circuit I'm missing.   I'm just used to seeing 470 ohm to 1K in that position.
Brian.

[aron]

Look at the 4.7M feedback resistor and the 50K emitter pot. Must be to compensate for that.

[casey]

well, i originally had munkey post this schem that i redrew a year
ago...then i found out the frantone had a box called a peach fuzz.
so i have renamed it the peachy fuzz.....  the original of course
can be found on the above previously mentioned link.....

[brian wenz]

Hello Hello Aron--
     Yeah, I saw those, also.........wonder what the reason for all the high values is......tranny choice?
At first I thought the 680K might be 680 ohms.....then I saw the 4.7meg.
Wonder if this is the same circuit as the "new" Peach Fuzz  with 3 controls on it?
Brian.

[brian wenz]

Hello Hello-
   Woops, guess you just answered my last question, Casey!
Brian.

[casey]

Hello Hello Aron--
     Yeah, I saw those, also.........wonder what the reason for all the high values is......tranny choice?
At first I thought the 680K might be 680 ohms.....then I saw the 4.7meg.
Wonder if this is the same circuit as the "new" Peach Fuzz  with 3 controls on it?
Brian.

no totally different than the new peach fuzz.....i just named it that
after i redrew to be cute....then i heard of another fuzz by that name
and have decided to call it the peachy fuzz....which is even cooler...

[brian wenz]

Hello Hello-
   Oh crap...now we're gonna have to find out what's in the Frantone Peach Fuzz!
  Anybody built the "Peachy Fuzz" yet???
Brian.