Product Overview
Logarithmic Taper Rotary Control with 18-Spline Knurled Shaft
Condition
Unused new old stock (NOS). Phenolic terminal board marked A500K. Clean split knurled shaft and solder eyelets with intact translucent plastic rear cover. Sold each.
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Product Overview
Rotary panel-mount potentiometer built on a 16mm footprint, featuring a 500k ohm logarithmic resistance track. Fitted with an 18-spline split knurled shaft with screwdriver slot, threaded bushing, anti-rotation locating tab, and three solder eyelet terminals for chassis-mount wiring.
Key Features
- 500k ohm nominal resistance value with logarithmic taper curve
- 16mm diameter body with translucent protective rear dust cover
- 18-spline split knurled shaft with flat-head slot
- Threaded collar with integrated alignment tab
- Three chassis-mount solder lug eyelets for point-to-point wiring
Applications
- Replaces scratchy or worn volume controls in guitar effect pedals and audio amplifiers
- Installs into passive electric guitar control cavities to handle high-impedance pickup attenuation
- Provides manual signal sweep in DIY analog synthesizer modules and custom sound generator builds
Frequently Asked Questions
What type of knob fits this control?
The control features a split 18-spline knurled shaft tip with a screwdriver slot, designed to seat standard push-on knurled instrument knobs.
Does this include mounting hardware?
Not included.
How do solder eyelets connect in a chassis build?
The terminals feature punched eyelets that allow hookup wire to be threaded, crimped, and hand-soldered, designed for point-to-point wiring rather than through-hole PCB insertion.
Audio tapers exist because our ears do not hear in straight lines. Wire this into your circuit, spin the knurled post, and dial in the sweep exactly where it sounds right.
