Looking for Unibus and Qbus extender cards

The same extenders work for Unibus and Qbus, and indeed Omnibus (PDP8/e, etc) and several otehr things. They're jsut straingth-through tracks to conencotr blocks. You need (at least) a hex-height and a quad-height one. Dual height is useful too. My set is _not_ up for grabs :-) Be warned that some machines (the 11/44 sprigns to mind) behave oddly if soem of their PCBs are put on extnders. I can't rememebr if it's a delay or noise/coupling problem (probably ythe latter), but I was led a merry dance when I was trying to sort out the cache in my 11/44 and only after a lot oftets did I realise this darn thing won't work if the cache board is on an extender. If you can;t find the extender boards, the well-known trick of soldering wires to the points of interest, putting the PCB back i nthe machine, powering up, and probing the ends of the wires works fine in a lot of cases. It's slower than using the extender, of course. -tony