27 Jul
2006
27 Jul
'06
11:42 a.m.
Hi Dwight,
I would be very interested in the cassette tape images! In looking through the
file cabinets of information, I did not find any information on the cassette
board, but I did find a copy of the assembly manual and schematics in one of the
Poly procedures books. It has a picture of the cassette board, and I am somewhat
doubtful that I have one. But, from what I could see, it wouldn't be hard to
relayout the board since I can see the traces on the component side. IIRC, I
probably have six - ten of the parallel boards installed in a burnin unit they
had, and those appear to be the same size. There is still one file cabinet I
can't get to right now that has some engineering drawings, ROMs, etc. so I'm
going to make an effort to get to it :),
BTW, I still have two more Poly 88 units, and a couple of chassis. So I am not
by any means leaving the Poly area :).
From: "dwight elvey" <dkelvey at
hotmail.com>
Hi Marvin
Please note that I have many of the cassette tape copied to image files
on the PC. I also have a simple way to download them to the Poly88 with
a serial card. You'd still need to find a cassette board or make one. The
manchester decoder chip might be hard to find but this could be constructed
from descreet parts or programmable logic.
A simple serial card can be easily made.
Dwight
-0700
I've put a few classic computer related items up on (ugh) ebay since I am
rapidly reaching the point where money is more than just a concept :). A
seller
search for KE6HTS will find me. Of interest to the classic computer
community is
a SWTPC PR-40 Alphanumeric printer, an incomplete Rockewell R6500 (AIM 65)
motherboard, HP Demo Board for the HP 2416 smart displays (used in the AIM
65),
and a Poly 88. I am also putting stuff up on the VCM at
http://www.vintagecomputermarketplace.com/ and probably will be until I run
out
of stuff in the year 2074 :).