FuzzDog AB/Y User manual

AB/Y with
optional K-buffer
Contents of this document re ©2014 Ped l P rts Ltd.
No reproduction permitted without the express written
permission of Ped l P rts Ltd. All rights reserved.

Schem tic
BOMs
PASSIVE
R2 2K2 (CLR)
R3 2K2 (CLR)
D1-3 LEDs
BUFFERED
R1 100K
R2 2K2 (CLR)
R3 2K2 (CLR)
R4 100K
R5 1M
R6 100K
R7 560R
C1 47u elec
C2 100n
C3 1u elec
IC1 TL072
D1-3 LEDs
If you w nt to keep
things re lly ne t you
c n use bi-colour
LED for the A-B
indic tor. Use
common c thode
device nd insert it into
these three holes:
The sh ded re is the buffer - ignore this if going for p ssive build.
PedalParts.co.uk

T e PCB is designed to ave t e footswitc es mounted directly to it.
You can use wire if you like - simply connect t e board pads to t e
corresponding pins on t e switc es.
T ere’s really not muc to it. Connect t e GND and signal wires for eac
jack socket, and t e GND and +V wires for t e DC.
If you’re building a buffered version, connect your INPUT jack signal to t e
BUF pad rat er t an IN.
You can mount t e LED straig t into t e PCB to save aving to use bezels.
W en t e rest of t e build is complete insert t e LEDs (s ort leg to
square pad), and bend t e legs very slig tly to keep t em from falling out.
Locate t e footswic es into place and tig ten. Now pus t e LEDs down
into t eir oles. Once tig tly into place, solder.
<<< Footswitc lugs s ould be
orizontal as s own.
You may experience ground um if
splitting your signal to two amps.