cctalk at randy482.com
Tue Jun 14 17:14:53 CDT 2005
From: "Bill Sudbrink" <wh.sudbrink at verizon.net>
Sent: Tuesday, June 14, 2005 4:07 PM
> Randy McLaughlin wrote:
>> From: "Stan Barr" <stanb at dial.pipex.com>
>> > Sellam Ismail said:
>> >> What's the challenge in that? I was online with my Apple //e in 1992.
>> > I've used my Mac SE (1988) online, but not in 1988! I could put it
>> > back online now if I dug the modem out of the bits box.
>> In the 70's I was calling up RCP/M's with my SOL-20, who
>> understands bye? :)
> Since we seem to be in a "can you top this" mood... In the 1970's, I was
> dialing into the NBS TIP with an OSI C1P (terminal program loaded from
> cassette tape) using a "modem" (that almost doesn't deserve the name)
> from a kit ordered from a little ad in the back of Byte. The "modem"
> consisted of a 2 inch square board with three chips on it. The speaker
> and mic hung off of wires. I attached them to the telephone handset with
> rubber bands. The "modem" attached directly to the USART chip in the C1P,
> talking serial at TTL levels. As one of the chips on the "modem" would
> heat up, the carrier frequency would shift (you could hear it). To keep
> from dropping the connection, I kept a little baggie with an ice cube in
> it at hand and would apply it to the chip to bring the temp down. Played
> the pre-commercial Zork on MIT-DM that way.
I remember the "modem" kits, the same company also sold cassette interfaces
(Kansas city format) that were the same basic circuit.
At the time most were illegally connected (no DAA) ;-)
I remember when Hayes finally came out with a smart 300 baud modem and I
could finally go high speed.
I have a Hayes S100 modem but it hasn't been fired up in years and wouldn't
dare try now, if one of the epoxy modules blew up I'd cry. I should still
have a DAA around also.
I used some AJ acoustical adaptors also.
I had a buddy that just plugged in his SOL-20 cassette port into a coupler
he had and would transfer to some other friends at 1200 baud while I was
just running my new 300 baud modem.
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