TECHNET Archives

May 2005

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Roger M Unwin <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Roger M Unwin <[log in to unmask]>
Date:
Mon, 23 May 2005 20:05:48 +0100
Content-Type:
text/plain
Parts/Attachments:
text/plain (26 lines)
Hi Technetters,

Any suggestions for a good hard wearing finish that would extend the
life of 3oz copper tracks being used as a sort of commutator. Am told
that first prototypes were made with chemical (Electroless?) gold over
nickel. Some lasted well, others not so well. Brushes are metal, sorry
don't know the composition. Approx. 5 amps current passes through
connections.

Thank you for your assistance

--
Roger M Unwin
P+M Services (R) Ltd     Tel :  01706 815212    Fax : 01706 818636
Http://www.p-m-services.co.uk

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------

ATOM RSS1 RSS2