• PC Board kit building General instructions for building kits with pot-mounting pc boards.
• 
• Box drilling template (same as v2.4.1)
• Wiring diagram PCB 2.4.2 (coming soon)
• Parts list, and Graphical Parts list (same as v2.4.1)
• Fine Tuning/Symmetry: The Tremulus PCB v2.4.2 uses the Symmetry control without any jumpers. Fine Tuning can be added by cutting a trace marked “Cut for Fine” and wiring a 1k pot to the two holes labeled “Fine pot”. If you don’t need the Fine Tuning pot, then just ignore “Cut for Fine” and the “Fine pot”.
• LEDs: The Bypass LED is located next to the 1k resistors by the Bypass wiring section. The long lead of the LED goes in the square hole. The LED that shines on the photocell is mounted directly to the PCB. The long lead of the LED goes in the hole closest to the TL072 chip (on the left if you’re holding the board so you can read the words). Bend this LED over so it points at the CdS (photocell), which should be mounted so its face is perpendicular to the PCB.

• PC Board kit building General instructions for building kits with pot-mounting pc boards.
• Schematic includes Symmetry/Fine jumpers
• Box drilling template
• Wiring diagram
• Parts list, and Graphical Parts list
• Note on LEDs
• Note: the kit from 4ms Pedal normally contains parts for Symmetry instead of Fine Tuning. You may build the pc board either way: see the wiring diagram for instructions

• Purchase kit from 4ms Pedals

• Uses a Panneur PCB for a mono-in, mono-out tremulus with a second LFO to modulate speed of main LFO
• Wiring diagram
• Drill

• Electronics diagram
• Expanded diagram
• Schematic
• Parts list
• Mods Parts list
• Hardware mounting list
• 125-C box drilling layout

• Mods (for point-to-point boards, but may be adapted for PCB 2.4.1)
  • using a DPDT stomp, Ramp-up Sawtooth, Rate doubler, Gain control
  • Symmetry mod
  • Aux LFO (to add) “superboard”
  • Aux LFO (to modulate main)
  • Aux LFO (to add) mod board
  • Two-speed mod
  • Combination mod (for aux LFO)
  • Aux LFO kill stomp

• Tweaker guides
  • Tweaking guide page 1
  • Tweaking guide page 2
  • Tweaking diagram
  • Tweaking power

QUESTION: Is better to use a anti-log pot for lfo frequency??? the standard pot gives a log frequency sweep...

ANSWER: Yes, if you can find an anti-log pot, that’s ideal. Using a log pot and wiring it “backwards” (pins 1&2 instead of 2&3) will give you a nice range, although it’ll be faster-CCW, slower-CW