11 Dec
2011
11 Dec
'11
5:38 p.m.
On 11 Dec 2011 at 20:07, David Riley wrote:
Well, yeah. My preference, given an abundance of
perfboard and
appropriate parts (not always a given), is wire-wrap. Much less stray
capacitance, and it's at least easier to keep the rat's nest linear
with wire-wrap (instead of the mass of arcs that a solderless
breadboard entails). However, while I have quite a few wire-wrap
machined-pin IC sockets (which work great for discrete passives as
well), I don't have any wire-wrap ports, which generally necessitates
a bit of some of the very worst kind of soldering to get the data off
the board. :-)
If it's a device I want to keep around, I construct the one-offs with
wirewrap, using wirewrap socket pins and blank foil-on-one side PCB
stock. I drill the pin holes myself with a #54 drill.
The wirewrap allows me to modify the design until it works right,
while the foil gives me a ground plane. +Vcc (or whatever) is run
with bare 20 AWG wire between pins on the top side of the board with
bypass caps spaced every so often.
After it's all done, the thing will last for decades.
--Chuck