[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: ][+ Questions
- Subject: Re: ][+ Questions
- From: Stephen Shaw <stephen@apple2.org.za>
- Date: Sun, 24 Jun 2001 15:36:38 +0000 (UTC)
- Cache-post-path: proxy.storm.co.za!gregw@venus.itns.co.za
- Newsgroups: comp.sys.apple2
- Organization: A poorly-installed InterNetNews site
- References: <9fdh6j$dug$1@nserve1.acs.ucalgary.ca> <ilblhtk8mkol7a86fa68ptdvtd5on76dkh@4ax.com>
- User-agent: MultiMail/0.40 (SOUP; Linux)
- Xref: archiver1.google.com comp.sys.apple2:9390
It might be a lower case switchable adapter
On Sun, 03 Jun 2001 17:50:42 -0400, agentwd40 wrote:
> The switch will write protect the ram card.
>
>
> On 3 Jun 2001 14:22:11 GMT, wbdesnoy@acs5.acs.ucalgary.ca (Byron
> Desnoyers Winmill) wrote:
>
>>One of my recent finds is a ][+ with the following curiousity: under slot 0,
>>the 74LS138 chip has been replaced with a red block and wires leading to a
>>toggle switch at the rear of the machine. It appears as though the block
>>contains another TTL chip, but it is impossible to tell what the chip is
>>through the 2mm hole. Does anybody know what this switch does?
>>
>>There was also a Macrotech Mem-1 board in this machine. It looks like a 16kB
>>expansion board, and is sitting in slot 0.
>>
>>Byron.
--
Internal Error: The system has been taken over by sheep at line 19960
- References:
- ][+ Questions
- From: wbdesnoy@acs5.acs.ucalgary.ca (Byron Desnoyers Winmill)