TTL computing

From: Stan Barr <stanb_at_dial.pipex.com>
Date: Mon Apr 15 02:55:42 2002

Hi,

John Honniball <coredump_at_gifford.co.uk> said:
>
> Tony Duell wrote:
> > > > I've had semicondcutor RAM fail, albeit not DRAM in a PC. 2114s are
> > > > particularly bad for this.
> ...
> > Hmm.. I've had so many 2114s fail, in equipment from different
> > manufacturers (examples : a Commodore 8050 disk drive, a TRS80 Model 3
> > (video RAM) and an HP82163 video interface) that I really suspect the
> > chips...
>
> I had a 2114 go bad in my UK101. I swapped it into the video RAM,
> which made the stuck "1" bit visible as a dud character in the
> middle of the screen. Scrolling made it "smear" all the way up
> to the top.
>
> More recently, I've managed to obtain a supply of 2114s to
> (hopefully) keep the UK101 going.

For the benefit of any UK readers, Maplin still list 2114s, part number
QW12N, price 4.99 - how long for is another matter, however...
-- 
Cheers,
Stan Barr  stanb_at_dial.pipex.com
The future was never like this!
Received on Mon Apr 15 2002 - 02:55:42 BST

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