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
