[Boatanchors] Cleaning a grungy chassis

[Glen Zook]

The Formula 409 + ammonia has been used for quite some
time by boat anchor restorers and works VERY well on
metal.  I have had no problems with it.

The ammonia may have something to do with the "ion"
problem.  However, again, this combination has been
used on hundreds of boat anchors by many restorers and
there have been no problems.

On circuit boards with solid-state components I have
no idea.  But with tubes there is NO problem.

Glen, K9STH


--- Peter Burbank <nv4v at adelphia.net> wrote:

About 409......I'd avoid using that stuff on
electronic gear. I cleaned a J-38 bakelite base with
it once and that key was too conductive for grid block
keying no matter how many times I rinsed it. I suspect
that 409 has a lot of ions to scavenge grease. Later I
was chatting with one of the cal guys with all the NBS
traceable standards that calibrated our lab gear
periodically and he said his techs avoided 409 like a
plague He said "409 is a good way to trash a circuit
board"










Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco

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