[modeleng] Re: Sale of Deceased ME's workshop

Hi Tim, Good to see you back.

I will be keeping my eyes open for the numbers, funds are a little limited 
but we will do our best.

Dave.

----- Original Message ----- 
From: "Tim Of The Above" <the_viffer@xxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Tuesday, January 30, 2007 11:39 AM
Subject: [modeleng] Sale of Deceased ME's workshop


Some of the longer in the tooth may remember me. Some of you may also
remember Dick Clements who died of cancer about 4 years ago.

His widow is planning to move to a smaller house and has asked me to dispose
of his workshop for her. I don't want to see it go too cheaply. Dick didn't
have nasty stuff so far as I know. I shall be selling it on ebay in lots
over the next couple of weeks. Please look out for it and make some decent
bids for some decent kit.

My ebay user name is plmokn321.

I shall also be selling some of my own stuff. I will identify which is
Dick's although feel free to pay excessive prices for mine too.


Oh and displacement reactions. You can plate a less reactive metal onto a
more reactive but not the other way round. So stick a bit of copper wire in
some silver nitrate solution and it'll get silver plated. Put some copper
wire in some iron sulphate solution and it won't.

You can find which is more reactive by looking up something called standard
electrode potential or redox potential. You need a decent gap between the
two to make the reaction work well.

I don't have the redox potential for Ni -> Ni2+ but I'd be a bit surprised
if you could plate iron onto nickel or vice versa very well.

An old boy I knew used to swear by copper sulphate for marking out steel.
Blue vitriol I think he called it. He'd degrease the steel pretty well and
then paint it over with copper sulphate. The copper would plate out and he'd
then mark out on the plating when it was dry. I reckon a big fat marker pen
is a better way.

And horologists silver plate brass clock dials using a displacement
reaction. The silver plate sticks really welll and can last years.

Cheers

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