FenderFender® - Founded in Fullerton California by Leo Fender, Fender Musical Instruments Corp is the world's foremost manufacturer of guitars, basses, amplifiers and related equipment dating back to the 1940's.
OptocouplerOptocouplers transfer electrical signals between isolated circuits through light, allowing isolation of high voltages from lower voltages.
Optocoupler - Vactec, VTL5C1, Vactrol, New Old Stock
New old stock Vactec VTL5C1 vactrols from Perkin Elmer Optoelectronics. These premium vactrols are a great choice for use in phasers, compressors, tremolos, and synth modules such as low-pass gates. They are also used in switching circuits in amplifiers. Limited quantities are available.