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Cherry M7 examples

Examples of Cherry gold crosspoint/Serie M7 switches. See table below for keyboard information.

Switches

Type Weight Stem Style Angle Colour Dot Keyboards Notes
Momentary A Black B65-46AB, HP 9830A, B80-64AB No posts (9830A); possibly heavy, but unmarked (B65-46AB)
Momentary T A Black B65-46AB, B25-59AA, CEX-17C No posts (B25-59AA)
M4 alternate action Grey B80-16AC
M4 fixed White B80-16AC
Momentary T AB Black B80-16AC, B65-85AB, B70-4753 (2)
Momentary Heavy T AB Black Red B80-16AC
Momentary double pole A Black B80-16AC
Fixed A Black B80-16AC
Alternate action A Grey B25-59AA, B70-05AB No posts
? ? ? Grey Yellow B65-85AB Found under a 2 unit key next to a second module
Momentary T A 10° White B80-64AB No posts (B80-64AB)
Momentary T AB 10° White B80-64AB
Momentary T B Black B70-05AB, B80-64AB, KB2100, UB80-0051, B70-4753 (1) (space), B70-4753 (3)
Momentary B Black B80-64AB
Momentary Heavy? B Black Red B70-4753 (3)
Momentary Heavy B White Red B80-64AB
Mechanical shift T 10° White B80-64AB
Mechanical shift lock 10° White B80-64AB
M71 red LED |  | White UB80-0051
Momentary Heavy? B Black Red B70-05AB
Momentary T C Black B65-1712, B70-4753 (1), G80-0081, G80-0229
Momentary T C 10° Black G80-0130 Lockout hole
Dummy Light T C 10° Black G80-0130 Lockout hole
Momentary Light T C 10° Black G80-0130 Lockout hole

Keyboards

These are arranged in approximate order of manufacture based on date and serial number. The country of origin is listed for two reasons: a) US serial numbers of that era (pre-MX) appear to be monotonic and may help position keyboards within the timeline where no date is available; b) it may help determine if switch styles are country-specific.

See the master vintage Cherry keyboards list for non-M7 types.

Keyboard From Serial Date Styles Reference Notes
HP 9830A USA N/A ca. 1975 A() deskthority.net
B25-59AA Hirose, Japan 170279 A(T,) deskthority.net
B65-46AB Waukegan, USA 176479 A(T,) deskthority.net No ICs to date
B80-16AC Waukegan, USA 766284 ca. 1978 A(), AB(T) deskthority.net Only one visible chip in the photos
CEX-17C USA N/A ca. 1979 A(T) deskthority.net Space bar is not clearly depicted, but it appears to be a T-stem switch with part of the stem snapped off, similar to this
G80-0081 Bayreuth, DE 0478 ca. 1979 C(T) www.utensilia.tk Not all switch types are confirmed to be visible
B70-4753 (2) Waukegan, USA 822962 ca. 1980 AB(T) imgur.com
B65-85AB Waukegan, USA 842905 ? AB(T) See at B80-16AC No ICs to date
B80-64AB Waukegan, USA 972433 ca. 1980 A(,T), AB(T), B(,T) www.flickr.com A and AB, and A and B switches are intermixed, with A appearing to be left-overs
B70-05AB Waukegan, USA 978224 ca. 1980 or 1983 A(), B(T) vintagecomputer.ca Most ICs are dated 79–80; the National Semiconductor DM74LS08N marked “8311” is either 1978 or 1983 depending on the date code, for which no explanation can be found (none of what is written on the chip can be explained)
UB80-0051 St Albans, UK 11193 1980 B(T), C(|  |)? geekhack.org Not all switch types are necessarily visible in the pictures; internal assembly model is UB80-0002 (note that the M71 switch is matte finish, suggesting Style C)
KB2100 USA N/A ≥ 1981 B(T) deskthority.net Dates not visible in the photos, but the PCB is marked ©1981 so that is the lower limit
G80-0229 Auerbach, DE 1072 ca. 1982 C(T) deskthority.net Not all switch types are necessarily shown
B65-1712 C(T) deskthority.net Bare keypad internals with very few details
B70-4753 (3) Waukegan, USA 1386095 ca. 1984 B(T,) deskthority.net Main IC and PCB label both imply 1984. It does use a paddle stabiliser, which is anachronistic as this was obsolete by 1979; B80-16AC from ca. 1978 already had the replacement wire type.
B70-4753 (1) ? ? ca. 1991 B(T), C(T) Unavailable Previously depicted by a Taobao seller; if any photos showed the serial label with the Cherry plant, these were not preserved
G80-0130 Auerbach, DE 0774 C(T) telcontar.net There may be readable dates on the chips, but I did notice that they were there until it was too late; at some point in the future we should be able to get the dates from it