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February 2001

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Subject:
From:
Guy Ramsey <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 15 Feb 2001 18:11:41 -0500
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Beautiful figures and workmanship.

Re: Figure 8. I have been taught that side by side with resistive element
out, kind of back to back billboard was preferable to stacking. I would be
very interested in your opinion.

 Guy Ramsey
American Competitiveness Institute
Senior Lab Technician / Instructor
610 362-1200 ext 107


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Jeff Ferry
Sent: Thursday, February 15, 2001 4:55 PM
To: [log in to unmask]
Subject: Re: [TN] Scab-On Parts


Bob,

We've just approved a new procedure to be added to 7721 called Component
Modifications and Additions. It includes guidelines for all sorts of odd
ball component mod stuff. You can get a preview of this new procedure off
our web site at http://www.circuittechctr.com/guides/6-3.htm.

Jeff Ferry
CEO
Circuit Technology Center
www.circuittechctr.com
[log in to unmask]

Chairman
IPC Repairability Committee

-----Original Message-----
From: Bob Hawkins [mailto:[log in to unmask]]
Sent: Thursday, February 15, 2001 4:45 PM
To: [log in to unmask]
Subject: Scab-On Parts


I have searched IPC-7711 and IPC-7721 and have been unable to locate methods
of mounting extra components on a finished CCA (other than - perhaps- part
of Figure 20 in IPC-7721 Sec 6.1 page 7 of 10).

Is anyone aware of and acceptable "methodology" for accomplishing CCA
modification by adding various types of components.

I would like to consider:
  Resistors and Capacitors
     Various other shapes such as
        Tantalum Caps
        Potentiometers
        SOPs
         etc.


Thanks

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