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Important notes

If you’re using any of our footswitch daughterboards,

DOWNLOAD THE DAUGHTERBOARD DOCUMENT

Download and read the appropriate build document for the daughterboard

as well as this one BEFORE you start.

DO NOT solder the supplied Current Limiting Resistor (CLR) to the main

circuit board even if there is a place for it. This should be soldered to the

footswitch daughterboard.

POWER SUPPLY

Unless otherwise stated in this document this circuit is designed to be

powered with 9V DC.

COMPONENT SPECS

Unless otherwise stated in this document:

Resistors should be 0.125W. You can use those with higher ratings but

check the physical size of them. 0.4W can also be found in 3mm length.

Electrolytics caps should be at least 25V for 9V circuits, 35V for 18V

circuits. Again, check physical size if using higher ratings.

LAYOUT CONVENTIONS

Unless otherwise stated in this document, the following are used:

Electrolytic capacitors:

Long leg (anode) to square pad.

Diodes/LEDs:

Striped leg (cathode) to square pad. Short leg to square pad for LEDs.

ICs:

Square pad indicates pin 1.

Summary of Contents for AlluringEcho

Page 1: ...lluringEcho Splendid modulated tape style delay Contents of this document are 2022 Pedal Parts Ltd No reproduction permitted without the express written permission of Pedal Parts Ltd All rights reserved ...

Page 2: ... document this circuit is designed to be powered with 9V DC COMPONENT SPECS Unless otherwise stated in this document Resistors should be 0 125W You can use those with higher ratings but check the physical size of them 0 4W can also be found in 3mm length Electrolytics caps should be at least 25V for 9V circuits 35V for 18V circuits Again check physical size if using higher ratings LAYOUT CONVENTIO...

Page 3: ... C13 100n C14 100n C15 10n C16 Empty C17 1u C18 1u C19 22n C20 10u elec C21 4u7 elec C22 100n C23 47u elec C24 100u elec C25 47u elec C26 100u elec C27 100u elec IC1 PT2399 IC2 OPA2134 IC3 LM358 U1 78L05 D1 2 1N4148 D3 1N5817 D4 LED DEP 100KB GAIN 100KB TRIM LVL 100KB REG 100KA SPD 50KB TIM 50KB T1 10K TRIM Extended delay time mod R14 10K C16 10n TIM 100KB Repeats will have more noise Missing from...

Page 4: ......

Page 5: ... all other board mounted components before you solder the pots Once they re in place you ll have no access to much of the board Make sure your pots all line up nicely The best way to do that is to solder a single pin of each pot in place then melt and adjust if necessary before soldering in the other two pins If your pots don t have protective plastic jackets ensure you leave a decent gap between ...

Page 6: ...rything else is assembled simple place R31 from the exposed leg of R19 to pin 1 of the SPD pot above D3 Adjusting the trimmers GAIN turn all the controls down to zero Adjust the trimmer until your engaged signal is the same level as your bypassed signal or louder if you want some boost T1 adjusts the overall modulation depth Tweak to taste There s no right or wrong ...

Page 7: ...mistake with the switch Solder some nice long lengths of wire to the board connections for 9V GND IN and OUT Connect IN and OUT to the jacks as shown Connect all the GNDs together twist them up and add a small amount of solder to tack it Connect the battery lead to the 9V wire same method Plug in Go If you re using a ribbon cable you can tack the wires to the ends of that It s a lot easier to take...

Page 8: ... jack then daisy chain that over to the OUT jack It doesn t matter how they all connect as long as they do This circuit is standard Negative GND Your power supply should be Tip Negative Sleeve Positive That s the same as your standard pedals Boss etc and you can safely daisy chain your supply to this pedal L E D BOARD OUT BOARD 9V BOARD GND BOARD GND BOARD GND BOARD INPUT BATTERY IN OUT L E D BOAR...

Page 9: ... Ltd can accept no responsibility for incorrect drilling of enclosures FuzzDog co uk Drilling template Hammond 1590B 60 x 111 x 31mm It s a good idea to drill the pot and toggle switch holes 1mm bigger if you re board mounting them Wiggle room good Recommended drill sizes Pots 7mm Jacks 10mm Footswitch 12mm DC Socket 12mm Toggle switches 6mm 35 5mm 27mm ...

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