# Synth & Eurorack Parts / DIY

Our Synth & Eurorack Parts / DIY category is a curated list of items that are commonly found in synth/eurorack projects. The items and filters here do not represent our full lineup of parts. If you don't see what you are looking for, check out our main categories or send us a suggestion and we'll look into adding it.
Photocell - Morley, for Effects Pedals
Photocell for Morley effects pedals. Great replacement for LDR1, LDR2 and LDR3 (M79-211564-000) in Morley Pro Series Volume PVO. Sold individually.
A photocell may also be referred to as a photoresistor, LDR, or light dependant resistor.
$2.50 Optocoupler - Xvive, Vactrol, VTL5C Series High quality vactrols from Xvive. The Xvive vactrols are clones of the original Excelitas / Perkins-Elmer vactrols used in many effects pedals, synthesizers, compressors and other equipment. These vactrols feature a thick epoxy sealed casing. The VTL5C3 and VTL5C3/2 both have a steep slope, good dynamic range, a very low temperature coefficient of resistance, and a small light history memory. Starting at$6.50
Optocoupler - XVive, VTL5C1, Vactrol, for Channel Switching
VTL5C1 vactrols for use in amplifiers, effect pedals, synthesizers and more. The VTL5C1 was commonly used for channel switching circuits in amps made by Crate and others.
\$7.95