14 Jun
2005
14 Jun
'05
3:14 p.m.
From: "Bill Sudbrink" <wh.sudbrink at verizon.net>
Sent: Tuesday, June 14, 2005 4:07 PM
Randy McLaughlin wrote:
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.
Randy
www.s100-manuals.com
From: "Stan Barr" <stanb at
dial.pipex.com>
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)
built
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. Sellam Ismail said:
In the 70's I was calling up RCP/M's with my SOL-20, who
understands bye? :)
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.