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.
Page 3
Schematic + BOM 100n (4n7*) 2N5088 Q1,2 ‡ 100n 2N2646 330K 100u elec 500KC (or B) DEPTH 10u elec 100KC (or B) RATE 2u2 elec** 47K Trimmer 330K SPDT ON-ON Switch Trimmer*** Original was 4n7, but this gives a really thin sound. Both caps are included, but any ticking may be more pronounced with the bigger value.
Page 4
SWITCH The power and signal pads on the PCB conform to the FuzzDog Direct Connection If you’re using a board-mounted micro toggle format, so can be paired with the appropriate you’re going to have to be very neat and daughterboard for quick and easy offboard careful.
Page 5
Things not quite Tickety-boo? R10 is there for you. The UJT in this circuit can produce an audible tick. It can be reduced, or even eliminated, by adjusting the value of R10. This does have a trade-off, in that the circuit may lock up at higher rates.
Page 6
Test the board! Check the relevant daughterboard document for more info before you undertake this stage. UNDER NO CIRCUMSTANCES will troubleshooting help be offered if you have skipped this stage. No exceptions. Once you’ve finished the circuit it makes sense to test is before starting on the switch and LED wiring.
Page 7
Wire it up (if using a daughterboard please refer to the relevant document) BOARD BOARD INPUT BOARD BOARD BOARD BOARD LED+ BOARD BOARD BATTERY Wiring shown above will disconnect the battery when you remove the jack plug from the input, and also when a DC plug is inserted. The Board GND connections don’t all have to directly attach to the board.
Page 8
This template is a rough guide only. You should ensure correct marking of your enclosure before drilling. You use this template at your own risk. Pedal Parts Ltd can accept no responsibility for incorrect drilling of enclosures. FuzzDog.co.uk...
Page 9
3 mm This template is a rough guide only. You should ensure correct marking of your enclosure before drilling. You use this template at your own risk. Pedal Parts Ltd can accept no responsibility for incorrect drilling of enclosures. FuzzDog.co.uk...
Need help?
Do you have a question about the Repeater V4 and is the answer not in the manual?
Questions and answers