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CED CE Distribution P PC LED DRV PCB LED Driver for Pedals and Synths P14448578CED-P-PC-LED-DRV https://cdnimages.opentip.com/full/CED/CED-P-PC-LED-DRV.jpg CE Distribution P PC LED DRV PCB LED Driver for Pedals and Synths Manufacturer Part Number: P-PC-LED-DRVThis small PCB is a simple way to add an indicator light that pulses to the rate of LFOs and clocks used in pedals, synthesizers, and other equipment. Simply connect the positive supply voltage to V+, ground to GND, and the output of a positive signal (0 to V+) such as an LFO or clock to the IN pad. The trimmer can adjust how the LED reacts to the signal. Fully clockwise it will simply pulse on and off when paired with a strong signal. If the signal is a sine, triangle, or any other non-pulse type signal, adjusting the trimmer counter clockwise can dial in settings that follow the shape of the waveform, brightening and dimming with the changing voltage. For certain dual op-amp LFOs in effect pedals, the signal may not go low enough to turn the LED fully off. If the change in brightness is not obvious enough, connect the IN pad to the side of the op-amp generating the square wave instead.A variety of different parts and values can be used in this circuit but a list of recommended values along with their part numbers are listed below for using this PCB with +9V effects pedals. These values can also be used with standard synth supply voltages (12V, 15V) but the RLED value will need to be increased. Additionally if you are building this with a different LED than the recommended part, keep in mind that the RLED will need to be adjusted.For a schematic and suggested parts/values, see the document below.Note: this listing is for the adapter board only. Components pictured are for demonstration and must be purchased separately. Length0.779 in. Thickness0.063 in. Width0.431 in. Packaging Information Packaging Dimensions0.779 in. × 0.431 in. × 0.063 in. Weight (Packaging)0.001 lbs. SchematicAll Models 14448578 0.1000lbs 0.00 0.00 0.00
CE Distribution
1.0000 2025-04-26 In Stock

CE Distribution P-PC-LED-DRV PCB - LED Driver, for Pedals and Synths

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SKU: CED-P-PC-LED-DRV
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Product Description

Manufacturer Part Number: P-PC-LED-DRV

This small PCB is a simple way to add an indicator light that pulses to the rate of LFOs and clocks used in pedals, synthesizers, and other equipment. Simply connect the positive supply voltage to V+, ground to GND, and the output of a positive signal (0 to V+) such as an LFO or clock to the IN pad. The trimmer can adjust how the LED reacts to the signal. Fully clockwise it will simply pulse on and off when paired with a strong signal. If the signal is a sine, triangle, or any other non-pulse type signal, adjusting the trimmer counter clockwise can dial in settings that follow the shape of the waveform, brightening and dimming with the changing voltage. For certain dual op-amp LFOs in effect pedals, the signal may not go low enough to turn the LED fully off. If the change in brightness is not obvious enough, connect the IN pad to the side of the op-amp generating the square wave instead.

A variety of different parts and values can be used in this circuit but a list of recommended values along with their part numbers are listed below for using this PCB with +9V effects pedals. These values can also be used with standard synth supply voltages (12V, 15V) but the RLED value will need to be increased. Additionally if you are building this with a different LED than the recommended part, keep in mind that the RLED will need to be adjusted.

For a schematic and suggested parts/values, see the document below.

Note: this listing is for the adapter board only. Components pictured are for demonstration and must be purchased separately.





warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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