I managed to hack a Western Digital Ethernet card onto
my PCjr and I'm pretty
happy about it. Using a packet driver and my own UDP implementation I can get
24KB/sec off of the machine with UDP checksums, and about 39KB/sec with UDP
checksums turned off.
The bad news is that I have a few more of these cards but the twisted pair
connector is designed for LattisNet. LattisNet is a precursor to the standard
Ethernet over twisted pair and it is supposed to be close, but my hubs aren't
The cards have AUI adapters and I was lucky enough to have exactly 1 CentreCom
210 which works fine. I need more though - like about 10. They're on eBay,
but buying them onesy-twosy will bankrupt me on shipping.
Does anybody have a few they want to unload, or know of a good seller? Also,
are all AUI/TP tranceivers equal or should I be looking for something better?
I have Qty-10 of:
Cabletron Systems TPT-2 AUI/TP transceivers
These are flat boxes (approx 6" x 4.5" x 1") which
have a DB-15 AUI connector on one end, and an RJ-45
connector on the other. Never used them, got them with
a load of other stuff, and don't really know anything more
about them (like if they work or not). Cosmetically they
are in excellent condition.
If these are of any interest to you, let me know - yours for
the cost of getting them to wherever you are - currently
located in Ottawa, Ontario Canada. I can send a photo if
dave06a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment: