Changing wire-wrap configurations on DEC circuit boards

[Randy Dawson]

That OK tool works great, and you can see it has the wire stripper in the handle.


One end is the unwrap, put it on the post and twist counter clockwise.


Clockwise is the wrap direction.


You strip 1 1/2 inch, shove the wire into the notch on the wrap end, place on post and twist.


________________________________
From: cctech <cctech-bounces at classiccmp.org> on behalf of jim stephens <jwsmail at jwsss.com>
Sent: Monday, February 13, 2017 6:46 PM
To: General Discussion: On-Topic Posts
Subject: Re: Changing wire-wrap configurations on DEC circuit boards



On 2/13/2017 4:09 PM, Bill Gunshannon wrote:
> ________________________________________
> From: cctech [cctech-bounces at classiccmp.org] on behalf of Earl Evans [earl at retrobits.com]
> Sent: Monday, February 13, 2017 6:45 PM
> To: General Discussion: On-Topic Posts Only
> Subject: Changing wire-wrap configurations on DEC circuit boards
>
> Hi there,
>
> I've got a couple of DEC QBUS boards (including a quad SLU) for which
> configuration is set by wire-wrap jumpers. I don't have a wire-wrap tool,
> and have found that trying this by hand without one is not workable.
>
> Has anyone come up with a clever way to permit reconfiguration of these
> boards without semi-permanent changes? Or, alternatively, what wire-wrap
> tool would you recommend?
>
> ______________________________________________
>
> I have a hlf dozen wirewrap tools laying around.  I have found little if any
> difference in them.  Amazon has them for $10 to about $30 dollars. If it
> matches the size wire your using the Radio Shack works fine for me.
>
> bill
>
>
Takes a bit of time for these, but I'd try for one recommended by Bill
or one of these:

New-OEM-Wire-Wrap-Strip-Unwrap-Tool-Hand-Manual-Winding-Rods-For-WSU-30M-AWG-30-/

http://www.ebay.com/itm/262798514618
[http://thumbs1.ebaystatic.com/d/l225/m/mkz0FhjoHWFieuaD2tEr4ZA.jpg]<http://www.ebay.com/itm/262798514618>

New OEM Wire Wrap Strip Unwrap Tool Hand Manual Winding Rods For WSU-30M AWG 30<http://www.ebay.com/itm/262798514618>
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New OEM Wire Wrap Strip Unwrap Tool Hand Manual Winding Rods For WSU-30M AWG 30 in Business & Industrial, Electrical & Test Equipment, Connectors, Switches & Wire, Wire & Cable, Hookup & Lead Wire | eBay



30 gauge, so if you want to use the stripper, that size wire will be
needed.  They used to have
them with semi safe to use strippers for other sizes.  If you are really
worried, get NoNics strippers
if you can find them.

Thanks
Jim