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Light Theremin - light dependent resistor (LDR) for Eurorack/Modular Synthesis - 3.5mm - 0HP

Ships from Ohio

Arrives soon! Get it by Sep 11-19 if you order today
Sep 11-19

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Highlights

  • Made by TidbitAudio
  • Ships from Ohio! Shorter shipping distances are kinder to the planet
  • Materials: Eighth inch plug, Heat shrink, Light dependent resistor, Rubber glue

Use any light source to modulate control voltage. The light dependent resistor (LDR) only lets voltage pass through in the presence of light, the more light, the more voltage can pass. Use a light to play it like a theremin or use varying light and shadow to create complex LFOs.

Great addition to any ambient or drone patch, any change of light in the room will cause subtle changes in the patch.

When used with strobing or flashing light, it can be used as a clock or trigger source!

Works in either direction with positive and negative voltage.

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  • Order today to get by Sep 11-19
  • Returns & exchanges not accepted
  • Cost to ship: $5.17
    Enjoy free shipping to the US when you spend $35+ at this shop.
  • Ships from: Columbus, OH

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Reviews for this item

What buyers say, summarized by AI: Great quality Easy to use Love it Fast shipping Helpful seller

5.0

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

(51 reviews)

5.0 Item quality
5.0 Shipping
5.0 Customer service
100% Buyers recommend
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5 out of 5 stars 5 This item

J'adorian Aug 1, 2026

Very cool design on all of the TidBits. Just what I needed. 0HP with the total functional design on all of the TidBits make them incredible for work-flow. Thank you, JÁdorian

J'adorian Aug 1, 2026

5 out of 5 stars 5 This item

Francis Oct 7, 2025

Very cool products, super excited to put them to use

Francis Oct 7, 2025

5 out of 5 stars 5 This item

g. May 31, 2025

Always cool little items, I've purchased several. Been very happy with the quality every time. A+

g. May 31, 2025

5 out of 5 stars 5 This item

Matthew May 10, 2025

These work better than I could have imagined. Put an offset in, plug into a CV input and enjoy.

Matthew May 10, 2025

TidbitAudio
TidbitAudio ·

Columbus, Ohio

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 4.9
·
9.9k sales
·
5 years on Etsy

Typically responds within a few hours

Typically responds within a few hours

Smooth shipping Has a history of shipping on time with tracking.

Rave reviews Average review rating is 4.8 or higher.

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Listed on Sep 2, 2026