8 Feb
2016
8 Feb
'16
2:10 p.m.
On Feb 8, 2016, at 2:04 PM, Noel Chiappa <jnc at
mercury.lcs.mit.edu> wrote:
That?s good to know although I use a number of different UNIBUS interface
parts depending upon the signal (input only, output only or bi-directional).
But NS8641?s are the most numerous.
TTFN - Guy
From: Ethan Dicks
I'm starting to get sorry I sold off my
surplus NS8641s from Software
Results 20 years ago. To be fair, I did get over $4 each for them, so at the
time, it was a good deal for me (ISTR retail was $7.50 even then, so I
got a good spread on the price).
I do have some left, but handfuls, not armloads.
NS8641's are still available. I got a bunch from a guy in Hong Kong for
US$1.50 each - considering the source, I built a test card to make sure they
met specs, and they do, so I'm pretty sure they aren't counterfeits. :-)
When I was worried he couldn't find enough, I checked with a supplier (4 Star
Electronics, I think) and they had like 50K available, and quoted me a price
in about the same region, so I don't think UNIBUS transceivers actually are a
problem, at least, not at the moment.