[GreenKeys] Wiring codes...

[Don Robert House]

For something not so completely different...

All of our electronics on the P2V made by Texas Instruments was wired  
in one color: orange.  All the Western Electric wiring was green (at  
the phone company as well)
The interesting part was if a modification was performed on the T.I.  
stuff it was done with green wire.  If a modification was done on  
WEco equipment it was done with orange wire.
The Philco equipment was wired in white with modifications in red.
All of this was within the equipment.  Only certain external cables  
were color coded for maintenance.

This reminds me of the change over from vacuum tubes to transistors  
on the MAD gear.   We removed 4 black boxes, each about 16" x 10" x  
24" and replaced them with 1 black box about the size of a cigar  
box.  All of those cables with Cannon plugs had to have patch cables  
installed.  Those were the days when cps became Hz... 1963.

My oh my, I am getting old...

Don



On 17 Jul 2006, at 12:07 PM, Eugene Hertz wrote:

While I was playing around I noticed that the ST6 audio input level  
had a big range. I didnt go after the largest input but was impressed  
at about 10-20mv input that seems very sensitive.  I know I'd been in  
the "several volts" range too.

BTW: One of my ST6's has the black lacing very tight around all  
wiring. Really beautiful. I would imagine that whoever in the factory  
wired it must have gone crazy with only the color white to use! All  
the wires in the harness are white, no way to distinguish them!   
Another of my ST6's is all orange! And yet another has purple! But  
the purple one looks too messy to have been done by the factory.

Eugene





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