50K Ohm Linear Taper Carbon Pot 1W Panel Mount - MLC54L

Product Condition

Unused, New Old Stock Mallory MLC54L potentiometer. Clean body with straight solder lugs, cylindrical threaded bushing, and round slotted metal shaft. No retail packaging included.

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Product Overview

Mallory MLC54L is a 50K ohm linear taper carbon-element potentiometer from the Midgetrol series. The MLC designation identifies the compact 15/16-inch diameter housing commonly used in mid-century industrial, audio, and test equipment. The “54” code corresponds to 50,000 ohms, and the “L” suffix specifies a linear taper response.

This panel-mount control features a standard threaded bushing and round slotted metal shaft for knob attachment. Linear taper provides proportional resistance change across rotation, making it suitable for bias adjustment, calibration controls, and signal level settings where predictable scaling is required.

Key Features

Model: Mallory MLC54L
Resistance: 50K ohms
Taper: Linear (“L” designation)
Element Type: Carbon composition
Series: Midgetrol (approx. 15/16 inch body)
Power Rating: Typically 1 Watt for linear versions
Mounting: Panel mount with threaded bushing
Shaft: Round metal, slotted end
Solder lug terminals
Designed for through-panel installation

Applications

Vacuum tube amplifier bias and level controls
Vintage guitar amp and radio restoration
Laboratory test equipment calibration
Industrial control panels
DIY audio builds requiring linear response
Signal attenuation in analog circuits
Replacement for original Mallory Midgetrol units

Frequently Asked Questions

Is this a linear or audio taper?

This is a linear taper unit, designated by the “L” suffix. Resistance changes proportionally with shaft rotation.

What does the 54 code represent?

In Mallory’s numbering system, “54” corresponds to 50,000 ohms (50K).

Can this be used in a guitar amplifier?

Yes, particularly for bias, tone shaping networks, or other positions where linear taper is specified. For volume controls, verify whether your circuit requires linear or audio taper.

What mounting style does it use?

It uses a standard threaded panel-mount bushing and solder lug terminals for wiring.

Is the shaft replaceable?

Some Mallory Midgetrol models supported interchangeable shaft systems. Confirm your specific mechanical requirements before installation.

Controls like this shaped the feel of countless amps and instruments. If you are restoring or building with classic parts, this 50K linear pot is ready for the panel.