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Need help identifying switches on some typewriters

Posted: 27 Oct 2016, 12:31
by LeanMachine
Hi guys, it's my first time posting here, but i've been lurking on deskthority for a long time.
Could you help me identify the switches used on some typewriters(they're not mine yet, I can buy them for 5-15 euros a piece). The first two picture are from an Olivetti Praxis 20, and the last two are from a Nakajima AX60. I asked the seller to take some pictures for me.
20161026_125740.jpg
20161026_125740.jpg (4.12 MiB) Viewed 2698 times
20161026_125750.jpg
20161026_125750.jpg (2.94 MiB) Viewed 2698 times
Nakajima1.JPG
Nakajima1.JPG (25.5 KiB) Viewed 2698 times
Nakajima2.JPG
Nakajima2.JPG (33.1 KiB) Viewed 2698 times
I've got my eye on some more typewriters, but the sellers won't take the keycaps of because they risk damaging the mechanism. Here's a list of those other typewriters.
- Brother AX-210
- Brother AX-15
- Olympia Mastertype D
- Philips VW 2140
- Philips VW 2000
- Smith Corona XL 1850
- Triumph Adler Gabriele 100
- Olivetti ET compact 60

Posted: 27 Oct 2016, 13:50
by Chyros
That looks like ordinary rubber dome and spring over membrane. Some old Brother printers came with dome and foil switches, and some Smith-Coronas came with the especially vile S-C leaf spring over membrane switches.

Posted: 27 Oct 2016, 16:41
by LeanMachine
Thanks for the help! Do you happen too know anything about the Triumph Adler(The gabriele 5000 and gabriele 100) or the Olympia as well?
Here's some pics:
Triumph Adler Gabriele 5000
Triumph Adler Gabriele 5000
adler5000.JPG (46.3 KiB) Viewed 2654 times
Olympia Mastertype D
Olympia Mastertype D
OlympiaMasterD.JPG (61.57 KiB) Viewed 2654 times

Posted: 27 Oct 2016, 16:45
by hypkx
We have a triumph adler wiki.

Posted: 27 Oct 2016, 19:08
by Nuum
The Olympia most probably has these switches: wiki/Marquardt_Two_Fingers_Typewriter_switch
I have a very similar board here.