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Cleaning PC Board material for your BITX transceiver construction
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Arv Evans
开云体育HiPC Board material that is stored for some time usually takes on a layer of oxidation that hinders soldering components to its surface.? In the past I have routinely used sandpaper to remove this oxidation and prepare the surface for my "ugly construction" projects.? Now I think I might have found a better way to prepare the surface.? I tried a small wire brush and found that it not only removes surface oxidation, it also leaves a much more polished surface and requires less effort.? The wire brush was purchased at a local hobby store for about $1 US, see the picture below.? If you have a small wire brush you might try it and see if it works for you. 73's Arv _._ |
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Hi
Can I also suggest that where the components are to be placed that the PCB pad is tinned?and where earth connections are to be made that area too is tinned, as it ensures a good joint and?the joint is quicker too!!? ? I think the sort of bush mentioned has brass wire bristles and used for cleaning suede shoes !! ?
Charles? G4VSZ
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?-----Original
Message----- HiFrom: Arv Evans [mailto:arvevans@...] Sent: 09 July 2004 19:00 To: bitx20@...; rlelm@...; leatkin@...; bequan@...; ciresnave@... Subject: [BITX20] Cleaning PC Board material for your BITX transceiver construction PC Board material that is stored for some time usually takes on a layer of oxidation that hinders soldering components to its surface.? In the past I have routinely used sandpaper to remove this oxidation and prepare the surface for my "ugly construction" projects.? Now I think I might have found a better way to prepare the surface.? I tried a small wire brush and found that it not only removes surface oxidation, it also leaves a much more polished surface and requires less effort.? The wire brush was purchased at a local hobby store for about $1 US, see the picture below.? If you have a small wire brush you might try it and see if it works for you. 73's Arv _._ |
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Bruce Raymond
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I'd
like to suggest the use of a copper/silver cleaner, such as Tarn-X.? I
don't know
what
would be similar across the pond or in other parts of the world.? I just
pour a
little
bit of Tarn-X on a paper towel or rag and then wipe the pcb.? Be sure to
wash
off
the Tarn-X residue with water when you're done.? I've heard of people
using
toilet
bowl cleaners and such, but this appears to be more benign.? It does
a
reasonable job, although not as good as a serious
session with steel wool.? OTOH,
it's a
*lot* less work? ;-)
?
-
Bruce? ND8I
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Mr. D.Walters
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Would those be "Blue -?blue, blue suede
shoes?"
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Theo
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Brasso is another cleaner that I have used in the past. Does an
excellent job! 73 de Baino --- In BITX20@..., "Bruce Raymond" <bruceraymond@s...> wrote: I'd like to suggest the use of a copper/silver cleaner, such asTarn-X. I don't know what would be similar across the pond or in other parts of theworld. I just pour a little bit of Tarn-X on a paper towel or rag and then wipe thepcb. Be sure to wash off the Tarn-X residue with water when you're done. I've heard ofpeople using toilet bowl cleaners and such, but this appears to be morebenign. It does a reasonable job, although not as good as a serious session withsteel wool. OTOH, it's a *lot* less work ;-)transceiver construction that the PCB pad is tinned and where earth connections are to be made that area too is tinned, as it ensures a good joint and the joint is quicker too!! used for cleaning suede shoes !! bequan@m...; ciresnave@y... Subject: [BITX20] Cleaning PC Board material for your BITXtransceiver construction a layer of oxidation that hinders soldering components to its surface. In the past I have routinely used sandpaper to remove this oxidation and prepare the surface for my "ugly construction" projects. Now I think I might have found a better way to prepare the surface. I tried a small wire brush and found that it not only removes surface oxidation, it also leaves a much more polished surface and requires less effort. The wire brush was purchased at a local hobby store for about $1 US, see the picture below. If you have a small wire brush you might try it and see if it works for you. ----------- Yahoo! Groups Linksof Service. |
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Jim Strohm
On Jul 11, 2004, at 8:53 PM, bainopaul wrote:
Brasso is another cleaner that I have used in the past. Does anI'd like to remind all that ScotchBrite is a relatively non-reactive abrasive matrix that works well with reasonably non-reactive chemicals. It's worth trying with Tarn-X or other "tarnish-removing" chems. I'm going to experiment with a few other commonly (globally) available chems. I'll report what I find, unless I find something that combusts. Jim N6OTQ |
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