17 Dec
2010
17 Dec
'10
1:22 a.m.
On Thursday, December 16, 2010 07:15:52 pm David Olofson did opine:
On Thursday 16 December 2010, at 23.39.21, Ralf
Mardorf
<ralf.mardorf@alice- dsl.net> wrote:
[...]
The quality of the wrapped connection depended on two items. First was the
quality and corner sharpness of the pins, and there were some real crap out
there being sold by name brands I won't mention, and the color of the wire.
The red wires colored dye would eat the wire in two in 5 years time. It
was the same dye that caused the wholesale failures of millions of mike
cords on cow barn radios back in the day. The copper of the wire turned
ugly brown and it got so brittle that it was not repairable. I started
shopping around looking for a suitable replacement cable, and experimented
with quite a few that claimed _their_ dyes didn't do that, but they all
lied, a lot.
--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Dr. Jekyll had something to Hyde.
Aaaaaaaaaaargh, I had an amp from an established
company, can't
remember this company, everything was connected by wire-wrapping, so
indeed a good discrete circuit, but the wire-wrapping did cause
defects. Btw. I prefer good old leaded solder, but leaded solder in
Germany isn't allowed anymore. We should start to wire-wrap all
electronic devices for our politicians here :p.
Wire-wrapping... *hehe*
For my university project (some puny 15 years ago ;-), I decided to have
some serious fun, and designed a MIDI synthesizer around a 68HC11, a
battery backed RAM, some EEPROM and three 8580 (newer SID) chips. 700
pins, all wire-wrapped. And it even worked! :-)
Actually, it's quite swift and effective method; it's the cutting and
stripping of the wires that's a PITA, unless you have a really good tool
- which I didn't at the time! :-D