Ethernet cable (Was: Sun3 valuations?)

Grant Taylor cctalk at
Tue Jan 23 13:58:00 CST 2018

On 01/23/2018 12:07 PM, Marc Verdiell via cctalk wrote:
> Have you seen this part of the video where David Boggs (designer of the 
> first 3 Mb Ethernet card for the Alto), and Ron Crane (designer of the 
> 10 Mb Ethernet) are doing a show and tell in their own words? You get 
> to see the clamps, the drill, the transceivers, the cards, and some of 
> the inventors. Regrettably Ron passed away a few month after we took 
> the video. We still miss him.

I really liked that video, and the entire Alto restoration series from 

I've got to say, I think David Boggs saying "…very simple off the shelf 
stuff, for people who want to know, it's RG-8. … This is the 50 Ω 
version of it."  I can fairly clearly see the RG-8/U on the side of the 
cable that David is holding at 8:01.  That's good enough for me.

Sure, there was probably a better alternative that came along after, 
with better shielding and marking bands.  But it sounds like RG-8/U is 
definitive acceptable to me.  I'll assume that David meant quality RG-8.

What I don't know is if RG-8/U was used for 3 Mbps and then something 
else was used for 10 Mbps.

Grant. . . .
unix || die

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