5965
Twin triode vacuum tube
1+15⁄32 in (37 mm)Pin 1 – Unit 2 Anode (Plate)
Pin 2 – Unit 2 Grid
Pin 3 – Unit 2 Cathode
Pin 4 – Unit 2 Heater
Pin 5 – Unit 1 Heater
Pin 6 – Unit 1 Anode (Plate)
Pin 7 – Unit 1 Grid
Pin 8 – Unit 1 Cathode
Pin 9 – Heater mid-tap
The 5965 is a miniature twin triode vacuum tube (thermionic valve). One of its manufacturers, Sylvania, states that it was “designed for use in high-speed digital computers”.[1]
According to an MIT Project Whirwind memorandum, the tube was developed for IBM by GE, primarily for use in the IBM 701 calculators, and was designated as a general-purpose triode tube.[2] The tube was also labeled as E180CC.[3]
See also
- 7AK7, a popular type of tube found in early digital computers
- 25L6, another type of tube found in early computers
References
- ^ Sylvania. Engineering Data Service. 5965. November 1953.
- ^ Frost, H. B. (May 4, 1953). "Memorandum M-2135: Some notes on current tube types" (PDF). MIT. p. 3. Archived from the original (PDF) on 28 March 2021. Retrieved 12 February 2024.
- ^ Wyatt, Allan. "5965". The Valve Museum. Retrieved 12 February 2024.
It is also labelled as a E180CC showing that the two Types are equivalent.