1 Feb
2006
1 Feb
'06
10:30 a.m.
On 1/31/06, Richard <legalize at xmission.com> wrote:
So with the T-bus wire wrap board, does it already
handle the bus
tranceiver stuff? I've been talking off list about techniques for
handling the bus requirements of Q-bus. It looks like you still have
to handle this yourself with a wirewrap board; I'm assuming chips in
the bottom row of <http://www.geocities.com/saipan59/robots/qbus_card.jpg>
are the bus transceivers?
It looks like it to me - from the schematic, he's using old National
chips (8838, etc)... not a bad trick for a one-off, but not so easy to
manage for, say, an new community design. Personally, I collect all
of the NS 8xxx chips I come across (a handful per year), more to
repair old boards than anything else, but someday, if an interesting
design crossed my path, I'd have parts to build one.
-ethan