(1) National Radio Products White Ceramic 4 Pin Tube Socket and Mounting Ring with Original Box.
Model: CIR Socket 4Prong.
Please note: Because this is a vintage NOS socket, the soldering terminal lugs are tarnished and blackened from age and storage (see photos). They will most likely need cleaning or burnishing before soldering - a brass wire or steel wire brush tends to do a good job at this. The white ceramic has some areas of dark spotting from production.
The box shows edge wear and scuffing overall.
Measurements:
The mounting ring holes are 1 7/8" (47.75 mm) on center.
The ceramic socket top diameter (the hole required in a chassis for installation) is 1 1/4" (31.75 mm) in diameter.
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