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IBM wire contact relays [message #410433] Wed, 04 August 2021 15:16
hancock4 is currently offline  hancock4
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Registered: December 2011
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The IBM history claims development of the space saving wire contact
relay, though Bell Labs makes some claims, too. I don't know who
invented it or even if there was a single inventor. Bell used it in control
circuits of its No. 5 crossbar switchgear. Also known as the wire spring relay.

private references to IBM relays
http://www.ibm-1401.info/IBM-WireRelays-VG.pdf

https://www.computerhistory.org/revolution/digital-logic/12/ 269/1334


In the 1960s IBM was selling relays and had a bunch of ads for
them. Interesting stuff. IBM ads tend to be more businesslike,
not as bold like the other ads.

Police communications, numerical control 2 pgs
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/68/Electronics- 1968-06-24-OCR-Page-0122.pdf#search=%22ibm%20wire%20contact% 20relay%22
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/68/Electronics- 1968-06-24-OCR-Page-0123.pdf#search=%22ibm%20wire%20contact% 20relay%22

Elevators 2 pgs
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/69/Electronics- 1969-03-31-OCR-Page-0116.pdf#search=%22ibm%20wire%20contact% 20relay%22
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/69/Electronics- 1969-03-31-OCR-Page-0117.pdf#search=%22ibm%20wire%20contact% 20relay%22

Control system 2 pgs
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/69/Electronics- 1969-01-20-OCR-Page-0132.pdf#search=%22ibm%20wire%20contact% 20relay%22
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/69/Electronics- 1969-01-20-OCR-Page-0133.pdf#search=%22ibm%20wire%20contact% 20relay%22

Price/performance
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/63/Electronics- 1963-08-02-OCR-Page-0037.pdf#search=%22ibm%20wire%20contact% 20relay%22

Computer quality 2 pgs
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/66/Electronics- 1966-09-05-OCR-Page-0020.pdf#search=%22ibm%20wire%20contact% 20relay%22
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/66/Electronics- 1966-09-05-OCR-Page-0021.pdf#search=%22ibm%20wire%20contact% 20relay%22

packaging cost reductions, high-speed switching, reed switch 2 pgs
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/68/Electronics- 1968-03-18-OCR-Page-0248.pdf#search=%22ibm%20wire%20contact% 20relay%22
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/68/Electronics- 1968-03-18-OCR-Page-0249.pdf#search=%22ibm%20wire%20contact% 20relay%22

time tested performance
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/62/Electronics- 1962-06-29-OCR-Page-0109.pdf#search=%22ibm%20wire%20contact% 20relay%22

12 pole
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/65/Electronics- 1965-05-03-OCR-Page-0116.pdf#search=%22ibm%2012%20pole%22

SLT recruitment
https://worldradiohistory.com/hd2/IDX-Site-Technical/Enginee ring-General/Archive-Electronics-IDX/IDX/60s/65/Electronics- 1965-03-08-OCR-Page-0215.pdf#search=%22ibm%20solid%20logic%2 0technology%22
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