Dual CV Scale/Offset

Schematic:


BOM:

Qty
Value
Device
Package
Parts
Description
1Header2X5 SHROUDEDJP110-pin Eurorack Shrouded Power Header
6100kResistorR0805R1, R2, R3, R6, R7, R8RESISTOR
4100nCapacitorC0805C2, C3, C4, C5CAPACITOR
210uCapacitorE2,5-5C6, C7POLARIZED CAPACITOR
21kResistorR0805R5, R10RESISTOR
21n4007DiodeD-7.5D1, D2DIODE
2200kResistorR0805R4, R9RESISTOR
247pCapacitorC0805C1, C8CAPACITOR
4B100kPotentiometer9MM SNAP-IN POTOFFSET, OFFSET1, SCALE, SCALE19mm vertical snap-in pot, Alpha / Panasonic style with 6mm built-in knob.
43.5mm JackTHONKICONNIN, IN1, OUT, OUT13.5mm socket for Eurorack modular synthshttp://shop.erthenvar.com/collections/accessories/products/3-5mm-inline-jackshttps://www.thonk.co.uk/shop/3-5mm-jacks/
1TL074DTL074DSO14IC1OP AMP

Instructions:Clean PCB with isopropyl alcohol.Solder surface-mount components, then through-hole components.Solder the pots, jacks, and power-header.Inspect soldering for shorts, and check that there is no continuity between the outer power pins and the inner pins, and with each other.Power the module, add a low voltage LFO signal to the input and monitor the output. You should be able to increase and decrease the range of the LFO, and shift it up and down close to the power rails (+12 and -12). Test the second channel.Done!