Changing wire-wrap configurations on DEC circuit boards

Bill Gunshannon bill.gunshannon at
Mon Feb 13 18:09:29 CST 2017

From: cctech [cctech-bounces at] on behalf of Earl Evans [earl at]
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.


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