Hallicrafters SX-28 RF Gain Pot

A difference in early radios was noted.

Early SX-28

Serial number H 16 969 (spaces intentional)
The pot is mounted on the chassis and has a shaft extension to get to the front panel knob.

Late SX-28

Serial number 158915 (missing H intentional)
The pot is mounted on the front panel.

SX-28A

Serial number HA 9125
The pot is mounted on the front panel.


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Last modified: Monday, 1 Jun 2026