Date   : Fri, 18 Jan 2013 13:49:33 -0000
From   : jumbos.bazzar@... (Mark Haysman)
Subject: BBC Micro keyswitches

The Master compact uses a keyboard type similar to the Archimedes, but not 
membrane, it relies on conductive pads at the end of each keytip to make the 
connection onto a PCB. It doesn't use individual keyswitches. It's probably 
easier to clean a Compact keyboard than any of the others, as you just 
remove the PCB from the back and clean all the contacts in one go.

Mark.

-----Original Message----- 
From: J.G.Harston
Sent: Friday, January 18, 2013 12:03 PM
To: bbc-micro@...
Subject: Re: [BBC-Micro] BBC Micro keyswitches

Daniel Beardsmore wrote:
> I am attempting to determine the manufacturer of the four known types
> of BBC Micro keyswitch. (There may be a fifth.)

Are you going to include the keyswitches used in the Master Compact?
They have a significantly different feel to them, though I've never
dismantled one to check. One of my Compacts is playing up a bit on one
of the keys so when I get around to taking it apart and
cleaning/whatever it I'll take some photos.

-- 
J.G.Harston - jgh@...      - mdfs.net

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