new Fender opto LCR isolator for Tremelo Vibrato tube amps

Description

new Optocoupler. Vibrato LDR for Fender Amps. Fix the dead LDR-style tremolo on your vintage Fender amps as well as others.
Current lot has no dot, but copper leads one side, silver leads one side
One side is non-polarized optical transmitter
Resistive side is other sides.
sold as-is no returns until i look up which side is copper, i think you could shine flashlight in ends while ohm meter connected, and resistive side drops in resistance with
light shined in the side
.95 each