Item:
EG&G Princeton Applied Research (PARC) Model 124A Lock-In Amplifier
Frequency Range: 2Hz – 210kHz
Condition:
• Unit powers on and digital display is responsive
• Reference and signal channel lights up, knobs respond
• No full functional testing performed
• Sold as-is, for parts or repair
• Cosmetic condition as shown – some wear and scratches from prior use
• Missing side module (blank slot present)
Includes:
• Main amplifier unit only (no cables, accessories, or manuals included)
Notes:
Classic analog lock-in amplifier widely used in low-noise optical and signal detection setups. Ideal for labs or restoration professionals familiar with EG&G gear.
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💬Optional Keywords for Visibility:
lock-in amplifier, analog signal recovery, EG&G Princeton, low-noise detection, phase-sensitive detector, optics lab, photodetector electronics, lab surplus
YH Surplus Store – Return Policy
We do not accept returns or refunds.
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