On Wednesday 22 November 2006 12:40, Richard wrote:
In article <200611220119.kAM1Jn48016567 at
mwave.heeltoe.com>,
Brad Parker <brad at heeltoe.com> writes:
Richard wrote:
How are you interfacing to the bus and is it Q-bus
or UNIBUS?
unibus. the chips are not that hard to find.
A couple of us were talking off-list about ways to interface to Q-bus
and transceiver chips for that bus are certainly hard to find (at
least we don't know of any sources for the actual DEC transceiver
chips or clones).
Is the situation different for UNIBUS?
No.
Just find some dead or not very valuable/useful QBUS or UNIBUS boards
(like CXY08's for QBUS or most third party boards that aren't memory or
disk controller), and desolder the transceivers. Or, find some modern
parts which are "close enough" to Q/UNIBUS specs. It probably doesn't
need to be an exact match unless you're pushing the bus length.
Pat
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