Product Overview
Vernitech Model 121 Linear Displacement Potentiometer 40K Ohm
Condition
Unused new old stock (NOS). Clean cylindrical aluminum housing with intact front mounting flange and flexible wire leads with factory-tinned tips. Markings legible: CIC VERNITECH DIV. OF VERNITRON CORP. DEER PARK, NEW YORK RECTILINEAR POTENTIOMETER MODEL 121 RES 40KΩ ±10% P/N 80474-3.
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Product Overview
CIC Vernitech Model 121 (part number 80474-3) delivers single-axis position sensing and linear displacement measurement across a 40 kΩ conductive track. Built by Vernitech, a division of Vernitron Corp., this transducer translates physical stroke along its round actuating shaft into a proportional resistance change. A square four-hole front mounting flange secures the body directly against machine bulkheads, while the threaded and slotted shaft tip couples to mechanical linkages, test fixtures, or custom actuator arms.
Key Features
- 40 kΩ total resistance with ±10% tolerance
- Precision rectilinear motion transducer for linear position feedback
- Three-wire color-coded flying lead termination (red, black, white) with tinned wire ends
- Square front flange with four mounting pass-through holes and two assembly screws
- Smooth cylindrical aluminum enclosure for bulkhead or panel installations
- Actuating shaft with threaded, notched tip for rigid linkage coupling
Applications
- Installs along machine axes to provide analog position feedback to data acquisition modules or PLCs
- Mounts to material test stands to monitor deflection and mechanical travel during load testing
- Calibrates stroke position on industrial valve actuators and pneumatic damper linkages
- Serves as a rugged manual stroke controller or fader on custom analog consoles and synthesizers
Frequently Asked Questions
What are the electrical connections on this potentiometer?
The unit terminates in three color-coded flying lead pigtails (red, black, and white) with pre-tinned conductor tips for direct soldering or terminal block connection.
How is this potentiometer mounted to a panel or chassis?
It mounts via an integrated square four-hole front flange. The actuating shaft extends through the center of the flange to engage your mechanical linkage.
How does the actuator shaft connect to mechanical linkages?
The actuating rod features a threaded and notched tip designed to engage standard threaded clevises, ball joints, or custom actuator brackets.
Built when industrial position sensors were machined out of solid metal and wired to outlast the machines they measured. Bolt it down, link the shaft, and put reliable linear feedback back into your system.
