Switch - Vibrato LDR, for Fender® Amps
Optocoupler. Vibrato LDR for Fender Amps. Fix the dead LDR-style tremolo on your vintage Fender amps as well as others.
- Non-polarized optical side is indicated by silver dot and slightly longer leads
- Resistive side is indicated only by slightly shorter leads
|Item Length||1.295 in.|
|Item Width||0.347 in.|
|Packaging Dimensions||1.3 in. × 0.4 in. × 0.4 in.|
|Weight (Packaging)||0.003 lbs.|
|Specification Sheet||All Models|
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Questions and Answers
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1 answers Hi I have a 1964 tremolux and the tremolo is not workin I have tried a new tube and footswitch and read the optoisolator might be bad. do you have one for my amp and is there a way to check if it is bad? Thanks Gary
1 answers Aloha, Is this part equivalent to Fender #16282? Mahalo, dan
1 answers Does it matter if it is installed silver dot face up or face down? Or it doesn’t make a difference?
Asked by Anonymous on August 15th, 2018.
This optocoupler can be safely installed with the silver dot face up or face down. The dot represents the non-polarized side, so pay close attention when installing this part. Installing with the silver dot in the wrong direction can result in damage to your amp.
1 answers Hi, I recently purchased this part. Checking the documentation I see that the LDR is on the end without the dot. The resistance on that side measures open (infinite), which does not seem right. In fact both ends measure open. Is this what you would expect? Thanks, Martin Manning
Asked by Anonymous on March 15th, 2021.
Hey Martin. The side with the dot is a neon bulb so it won't read with a multimeter. The other side is the photosensitive resistor which measures very high resistance with no light present. Once the bulb is lit, the resistance will drop.