Overview
The Beckman 78PR50K 7937P multi-turn trim potentiometer is a precision variable resistor rated at 50K ohms. The Beckman 78PR50K belongs to the 78 series family, which is built to exacting standards for applications requiring smooth, repeatable adjustment of circuit resistance. This lot includes 19 units of new, open-box condition potentiometers suitable for lab, production, and field repair work.
Key Features
- 50K ohm resistance value with standard tolerance
- Multi-turn trimmer design for precision adjustment over full resistance range
- Three-pin configuration for standard PCB or panel mounting
- Reliable helical coil construction
- Suitable for test equipment, instrumentation, and circuit tuning
Technical Specifications
- Manufacturer: Beckman Instruments / BI Technologies
- Series: 78 Series
- Part Number: 78PR50K
- Alternate Designation: 7937P
- Resistance: 50K ohms
- Type: Multi-turn trim potentiometer
- Configuration: 3-pin
- Adjustment Method: Top or side adjust (potentiometer style)
- Quantity: Lot of 19 units
- Condition: New, open box
Typical Applications
- Test and measurement equipment calibration
- Scientific instruments requiring resistance adjustment
- Audio equipment tone and level control
- Analog circuit tuning and compensation
- Laboratory power supply voltage adjustment
- Equipment repair and restoration projects
Compatibility & Replacements
Compatible With
- Any PCB, panel, or breadboard design accepting standard 3-pin potentiometers
- Analog circuits requiring 50K ohm variable resistors
- Vintage and modern electronic test equipment
- Industrial control and instrumentation systems
Replaces / Drop-In Replacement For
- Other 50K ohm multi-turn trim potentiometers in the same footprint
- Verify pin configuration and mounting style with your equipment before substitution
Works With
- Standard analog circuit designs using variable resistors
- Manual adjustment and tuning applications
- Compatible with any voltage or current level within the potentiometer’s rated power dissipation












