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73387 2005-03-06 Re: [EE] Wire wrapping insight nee..	73397 2005-03-07 Re: [EE] Wire wrapping insight nee..
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73495 2005-03-08 Re: [EE] Wire wrapping insight nee..	73496 2005-03-07 Re: [EE] Wire wrapping insight nee..
73506 2005-03-06 Re: [EE] Wire wrapping insight nee..	73523 2005-03-05 Re: [EE] Wire wrapping insight nee..
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73632 2005-03-06 Re: [EE] Wire wrapping insight nee..	73635 2005-03-07 Re: [EE] Wire wrapping insight nee..
73641 2005-03-06 Re: [EE] Wire wrapping insight nee..	73650 1969-12-31 Re: [EE] Wire wrapping insight nee..
73672 2005-03-07 Re: [EE] Wire wrapping insight nee..	73760 2005-03-09 Re: [EE] Wire wrapping insight nee..
73772 2005-03-09 Re: [EE] Wire wrapping insight nee..	73776 2005-03-09 Re: [EE] Wire wrapping insight nee..
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Message #73333 of 126777
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Date: 2005-03-09
From: Bob Axtell
Subject: Re: [EE] Wire wrapping insight needed!

Jake Brownson wrote:

>Wow, I don't know why everybody is complaining about WWing. In my
>Junior level microprocessors I just completed, and in my PLDs class
>Sophomore year we did _plenty_ of wire wrapping. It is much easier
>than soldering everything, and though we ran fairly slow clocks
>(16MHz) there were never concerns with EMI or anything, though we did
>discuss that at faster speeds there might be some. All you need for
>wire wrapping is the $7 wire wrapping tool from Radio Shack, some
>wire, and some posts, don't waste your money on some fancy electric
>wrapper or a separate removal tool. A good stripper (not that kind) is
>handy, but I used the little one that comes w/ the WW tool for 3 terms
>with no problem.
>
>As some have said already, but I'll confirm:
>* Probably don't use 30 AWG wire for your power lines
>* Keep high frequency/noisy lines far away from the sensitive ones, and short
>* If you need a long HF line or one close to other wires, try to run
>it perpendicular to other wires
>* You can spend 10 mins practicing and be just fine
>
>If I were going to make a relatively complicated design
>(connection-wise anyway) I would most likely choose wirewrapping for
>prototyping, and then develop a PCB for it when I knew it was working,
>but a carefully wirewrapped board is perfectly presentable, and
>debuggable.
>
>As for the speed concerns, try an experiment with a 40MHz freq
>generator going to a post, and hook up an osc to a loose wire or
>something, and see how much EMI you get.
>
>(I'm no expert w/ EMI and HS problems, so listen to someone else on
>that if they know better)
>
>~Jake B
>  
>
Mr Design, go for it. Us 'ole guys have been proven wrong before... I am not
afraid of being proven wrong...I can take it. I'm from Arizona (I don't 
shave,
I have a tiny hammer- I pound 'em in and bite 'em off from the inside).



--Bob Axtell

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