657

The General Radio 657 Tube Socket was introduced in Bulletin 933 (1931) and remained available through Catalog H (1935).

The Type 657 is a four pin vacuum tube socket designed for UX type tubes. Its a surface mount design with solder tabs and screw type connections. Looking closely at the top view one can see the socket is labled with triode tube elements.

Specifications

• Number of Connections: 4 pin style UX
• Connection Type: solder tab or screw type
• Material: isolantite

Links

• Experimenter July 1927 describing Types 349 and 438
• Experimenter May 1931 describing Type 657 and 658

Photos

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