Product Overview
Archer 276-196 CdS Photoresistor 3-Piece Pack 170V Peak
Condition
New old stock. Unopened original retail card with 3 photocells sealed inside. Vintage stock preserved in clean condition.
Ships same or next business day from our Idaho warehouse. Honest pricing, no nonsense.
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Product Overview
Archer catalog number 276-196 cadmium sulfide (CdS) photoconductive cells, distributed through Radio Shack and Tandy Corporation. Each package contains three radial-leaded through-hole photoresistors designed for light-sensing circuitry, optical switching, and analog audio control.
Key Features
- Cadmium sulfide (CdS) photoconductive material
- Applied voltage rating: 170V peak (AC or DC)
- Power dissipation: 0.125W at 25°C
- Light resistance: 3.3 kΩ at 2 Ft-C (2854°K)
- Minimum dark resistance: 165 kΩ (measured at 5 seconds)
- Peak spectral response: 5500 angstroms (550 nm)
- Operating temperature range: -25°C to +75°C
- Two-pin radial through-hole leads
Applications
- Solder directly into vintage analog tremolo, chorus, or compressor effects pedals requiring passive variable light resistance.
- Wire onto breadboards for hobby microcontroller light-detection experiments, robotics line-following, or automatic night-light trigger circuits.
- Replace aged or degraded photocells in vintage Radio Shack kits, science projects, and optical gate monitors.
Frequently Asked Questions
How many photocells are included in this package?
This package contains three individual cadmium sulfide photocells on the original retail display card.
What is the peak sensitivity wavelength for these sensors?
Peak spectral response is 5500 angstroms (550 nanometers), matching the visible green spectrum close to human eye sensitivity.
Why choose this sealed vintage 3-pack over bulk modern assortments?
You receive the authentic Archer components with factory-specified response characteristics and known baseline curves printed on the card. Orders ship for an $8 flat rate, ship free once your order passes $28, and depart our Idaho warehouse the same or next business day.
Nothing captures the slow, organic response of an old optical tremolo quite like vintage cadmium sulfide. Drop them into your circuit and let the light do the playing.
