Product Overview
Precision Electronics 1kΩ Hot-Molded Carbon Panel Potentiometer
Condition
Unused new old stock (NOS). Rear casing is clearly stamped with PEC logo, RV4LAYSA102A K4, KLU1021S20 1K, and MADE IN CANADA. Includes factory mounting hex nut, internal-tooth lock washer, and shaft locking assembly. Gold-plated solder lugs are clean and free of solder.
Same or next business day shipping from our Idaho warehouse. Reliable parts since 1999. Honest pricing, no nonsense.
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Product Overview
Precision Electronics Corporation (PEC) model RV4LAYSA102A (catalog number KLU1021S20) is a heavy-duty 2-watt, 1 kΩ industrial potentiometer built to MIL-R-94 Style RV4 standards. Built around a solid hot-molded carbon element, it delivers smooth electrical control and long-term parameter stability under temperature swings and mechanical vibration. The integrated locking bushing and slotted collar allow technicians to secure the 0.25-inch shaft in place once dialed in, preventing calibration drift on critical panels, industrial machinery, and analog audio gear.
Key Features
- 1 kΩ nominal resistance with ±10% tolerance
- 2 W power rating at 70°C
- Linear resistance taper
- Solid hot-molded carbon composition element
- Threaded locking bushing with hex locking nut and washer
- 0.25 in (6.35 mm) slotted adjustment shaft
- Gold-plated solder lug terminals
- Manufactured to MIL-R-94 Style RV4 military specifications
Applications
- Securing fixed bias, threshold, or calibration trims in vintage broadcast consoles and tube amplifiers.
- Replacing drifted calibration potentiometers inside legacy industrial instrumentation and avionics test benches.
- Locking down reference adjustments on processing machinery subjected to continuous motor vibration.
- Building dedicated analog synthesizer modules and bench power supplies requiring tamper-resistant set-and-forget controls.
Frequently Asked Questions
How does the shaft locking mechanism work?
The bushing features an external threaded collar and hex locking nut that tightens down around the slotted shaft sleeve, firmly securing the shaft angle so mechanical vibration or accidental bumps cannot shift your setting.
What mounting hardware comes with this potentiometer?
The unit includes the threaded mounting collar, hex locking nut, and lock washer shown on the bushing.
Why choose this single potentiometer over an unsorted surplus lot?
You receive the exact, clean NOS potentiometer shown, complete with verified markings and its complete locking hardware, eliminating the risk of oxidized lugs or missing nuts typical of mixed surplus assortments. Flat rate shipping is $8, orders ship free once you pass $28, and parts ship out from our Idaho warehouse the same or next business day.
Set it, lock the collar, and walk away knowing the calibration stays put for the next twenty years. Some adjustments are never meant to be touched twice.
