[sdiy] Wanted: Multibus (late 70s microprocessor bus) extender card

[Steve Lenham]

Hi,

Does anyone happen to have spare, or can anyone point me in the direction of 
an inexpensive source for, an extender card for Multibus (the late 70s 
microprocessor bus standard)? I know that Digikey and Mouser list them new, 
but they are around $120 each.

I'm working on a Lexicon 224 reverb unit (a fascinating device), which uses 
a Multibus backplane and eight plug-in cards. I need to be able to work on 
these cards with them still attached to the bus - hence the need for an 
extender.

Any pointers would be much appreciated. I'm in the UK, but am happy to 
import.

Cheers,

Steve L.