[GreenKeys] Re: 28 ASR Keyboard

Fri, 3 Jan 2003 10:57:03 -0600

Yes,  I thought of the lock-ball channel as well, however that is a bit rare.

Don

>I can think of one other possibility,  (pardon the rotten 
>terminology) if one of the little 'arrows' breaks off and jams in 
>the trough of ball bearings that is used to prevent simultaneous 
>keystrokes.   Not common, but I've seen it in a machine that wasn't 
>properly maintained.
>
>Gil, W1RG
>
>Don Robert House wrote:
>
>>There are several things that can cause the keyboard to lock up. 
>>The most common is either the gear on the typing unit is not meshed 
>>properly (due probably to lack of typing unit hold down screws.) OR
>>the keyboard clutch has  a broken spring.  There is also a mod kit 
>>on some machines to lock the keyboard with certain codes or with 
>>red keys.  The red keys have separate connections to the machine 
>>from the green ones.
>>
>>Don
>>_______________________________________________
>>GreenKeys mailing list
>>[email protected]
>>http://mailman.qth.net/mailman/listinfo/greenkeys
>>
>
>_______________________________________________
>GreenKeys mailing list
>[email protected]
>http://mailman.qth.net/mailman/listinfo/greenkeys

-- 
--------------------------------------------------------
Don Robert House
North American Data Communications Museum
URL: http://www.nadcomm.org
Computer Museum of America
URL: http://www.computer-museum.org