interference

[jdzura at csc.com]

I also beg to differ, I have personally run DSP wirewraps at about 20 MHz. If the
breadboard is a wirewrap, it is possible to wrap a ground grid. Simply attach
every ground to every other one, forming a grid of ground wires. It does wonders
for reducing noise.

Good luck





cmorris at ix.netcom.com on 05/13/98 08:57:32 AM

Please respond to diy_efi at efi332.eng.ohio-state.edu

To:   diy_efi at esl.eng.ohio-state.edu
cc:    (bcc: Joe Dzura/SED/CSC)
Subject:  Re: interference




On Wed, 13 May 1998 02:50:47 -0400, you wrote:
>One question, if you did anything with wirewrap, it will not work. ;-) Lots
>of antennas...
>
>Sandy (rambeling, and spelling badly)
     I beg to differ. I am running a wire-wrap breadboard to control
two additional fuel injectors for my turbo BMW. Tossed it in the
glovebox and hooked up the wires. It has never missed a beat despite
the presence of an MSD-6 (multispark) ignition, and it doesn't even
have a watchdog reset (a quickie design). Works so well that I never
got around to spending the $250 or so to have a PC board made.
     I have built some high-speed circuits that worked better on the
bench as wirewrap boards than when produced as PC boards with all
those parallel traces coupling into each other...
-Charles
p.s. "rambling"  ;)