background image

• 470p (470) capacitor x 2 - one on the top row, one on the bottom, both in the centre
• 3n3 (332, 0.0033u) capacitor x 2 - one on the top row, one on the bottom, both in the centre
• 470n (474, 0.47u) capacitor x 3 - one in the centre row, far left, the other two on the top row 

and bottom row, both right of centre.

Electrolytic capacitors

There are only three of these, but you need to watch the polarity. 

• 47u capacitor - bottom row, far right
• 47u capacitor - top row, left
• 1u capacitor - bottom row, right of centre

Preset resistors (Trimmers)

There are two trimmers, the 100K Resonance trimmer (marked “100K Res”) and the 10K clock 
bleedthrough trimmer (marked “10K Bal”). The resonance trim is in the centre row, to the left of 
the op-amps. The clock balance trimmer is top-right, next to the electric druid logo.

Second cup of tea and Power Test

Have a break. If you’ve got this far, you deserve it. Also, you need to be on top form for the next 
part- testing the power. At this stage, you can power the board up and check the voltages with a 
multimeter. There should be 9V power across pins 4 and 8 of each op-amp socket. There should be 
5V power across pins 1 and pin 5 of the BBD socket and between pins 8 and 1 of the FLANGE 
chip socket.

Check the soldering over one last time, since after you fit the pots, it’s a lot more difficult to get to 
some of the PCB.

Potentiometers

Note that the pots mount on the back 
(solder-side) of the PCB!

First, break the small anti-rotation tabs off 
the pots with pliers.

Flangelicious Construction Guide

www.electricdruid.net

Page 4

Summary of Contents for Flangelicious

Page 1: ...capacitors 3 Film capacitors 3 Electrolytic capacitors 4 Preset resistors Trimmers 4 Second cup of tea and Power Test 4 Potentiometers 4 Install ICs 5 Off board wiring 6 Adjustments and final testing 6 Bill of Materials 8 Offboard components 9 Component choices and substitutions 9 Ideas for potential upgrades or customizations 10 Adding CV inputs 10 Adding Expression pedal inputs 10 Adding more sw...

Page 2: ...p flanging Build Instructions You re advised to have a read through of these instructions before starting work on the PCB To keep these instructions reasonably brief it is assumed that you know how to orientate common components Populate the PCB The board should be populated in order from smallest components to tallest The BOM on page 8 is arranged in this order so start at the top and work your w...

Page 3: ...y around you can solder the rest of the pins If not it s much easier to adjust it with only two pins soldered Removing IC sockets from plated through hole PCBs like this one is difficult and not recommended Regulator The 78L05 5V regulator REG1 is in the bottom right corner next to the power protection diode Be sure to line up the flat side and the curved side with the markings on the PCB Don t mi...

Page 4: ...the centre row to the left of the op amps The clock balance trimmer is top right next to the electric druid logo Second cup of tea and Power Test Have a break If you ve got this far you deserve it Also you need to be on top form for the next part testing the power At this stage you can power the board up and check the voltages with a multimeter There should be 9V power across pins 4 and 8 of each ...

Page 5: ...s in it for the legs of the pots to pass through they hold it in place once soldered and it can t fall out This is cheap steal the plastic from work simple get a grown up to help you with the scissors and effective none have blown up yet Install ICs If the voltage check was ok you can install the four chips two dual op amps the BBD and the Electric Druid FLANGE chip The PCB is done Well done Drill...

Page 6: ...ur particular LED Adjustments and final testing Ok it s the moment of truth Power it up and plug it in With a bit of care and attention you should now have a working flangerlicious pedal Let s get it tuned up There are two trimmers on the PCB that need adjusting The first is the resonance trim Res Turn the resonance knob on the far right up to maximum It s possible that the pedal will start to how...

Page 7: ...be aiming for 100mV or less You can also adjust the trim by ear With no input signal turn the guitar down to zero turn the amp up loud until you can hear the background noise and then adjust the trim to minimize the noise You re done Congratulations and enjoy your new pedal PS We appreciate any feedback suggestions or thoughts you have about this pedal or any other Druid project Please get in touc...

Page 8: ...78L05 1 14 TR1 NPN Transistor 2N3904 1 15 C14 C17 C19 Ceramic capacitor 100n 3 16 C1 C2 Film capacitor 100n 2 17 C3 Film capacitor 1n 1 18 C4 C10 Film capacitor 150p 2 19 C5 Film capacitor 33n 1 20 C6 C8 Film capacitor 470p 2 21 C7 C9 Film capacitor 3n3 2 22 C11 C12 C15 Film capacitor 470n 3 23 C13 Electrolytic capacitor 1u 1 24 C16 C18 Electrolytic capacitor 47u 2 25 PR1 Preset Resonance Trim 100...

Page 9: ...ead spacing for the film capacitors Transistor choice is not critical Any medium gain low noise NPN device will work The board expects a transistor with the EBC pinout like the 2N3904 If you only have transistors with the alternative CBE pinout like the BC547 you can fit the transistor back to front Similarly op amp choice is not critical Choose any 8 pin dual audio op amp with the standard pinout...

Page 10: ... pedals you can t hurt anything even if it s completely wrong If you get it back to front before you get it the right way around no matter Both versions of the chip allow you to manually sweep the flanger with the farthest left control Manual or Rate Connecting an expression pedal instead of this control would give you a foot pedal wah style flanger Adding more switches and options Both the MULTI ...

Reviews: