FuzzDog Tails/True Bypass - add-on for PT2399 delays Operating instructions

Brand
FuzzDog
Model
Tails/True Bypass - add-on for PT2399 delays
Type
Operating instructions
Tails
Keep your repeats
Works a treat(s)
Contents of this document are ©2018 Pedal Parts Ltd.
No reproduction permitted without the express written
permission of Pedal Parts Ltd. All rights reserved.
Schematic + BOM
R1,3 2K2*
R2 1K
C1 10u elec
C3 100n**
Q1 J112
D1,3 LED
D2 1N4148
This looks more complex than it is. Everything to the left
of SW-TAILS_A is the standard true bypass circuit on the
3PDT footswitch.
*Current limiting resistors for the LEDS. Use your
prefered value.
**Whichever value you prefer. Bigger value = more bass.
Other FETs may work for Q1.
Footswitches are standard 3PDT for Bypass, DPDT for
Tails. Latching or momentary - it’s up to you.
In operation the 3PDT bypasses the circuit altogether.
When the 3PDT is engaged the TAILS footswitch will
determine whether your instrument signal is sent to the
delay circuit or not.
To add the Tails function
to a circuit you replace
the decoupling cap from
the input stage with pads
A and B from the Tails
board. Here’s the Echo
Blue Delay as an
example.
Here you can see the signal goes
through IC1 as Input and Output
stages. This signal is sent through C5
to the delay section. In this case we
replace C5 with the TAILS board.
Instead of adding C5 to the Echo Blue
we attach Tails Pad A to the + pad of
C5, B to the - pad. The FET on the Tails
board then controls whether the
signal is sent to the delay section or
not. The LED will indicated whether it
is on or off.
Unfortunately this isn’t perfect. If you
have your repeats set really high you
will get some noise bleed into your dry
signal even when bypassed.
Implementation
Wire it up
There’s only one GND pad on the
daughterboard for the jack
connections, so connect a wire
between the two jacks as shown.
Drilling template
Hammond 1590B
60 x 111 x 31mm
It’s a good idea to drill the switch
holes 1mm bigger.
Wiggle room = good!
Recommended drill sizes:
Footswitch 12mm
32mm
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5

FuzzDog Tails/True Bypass - add-on for PT2399 delays Operating instructions

Brand
FuzzDog
Model
Tails/True Bypass - add-on for PT2399 delays
Type
Operating instructions
Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents