11 Jan
2008
11 Jan
'08
3:36 p.m.
Date: Thu, 10 Jan 2008 16:48:47 -0800
From: chrism3667 at yahoo.com
To: cctalk at classiccmp.org
Subject: Re: youtube movie of making a vacuum triode.
just what is that spot welding contraption? It appears
to work on a principle similar to a *resistance
soldering* unit, that actually uses carbon rods (at
one time you could pull them from batteries, not
anymore though).
Hi
It is a spot welder. It looks just like all the ones I've seen.
It works as you'd expect. Current flows and makes the junction
hot enough to melt. That is how all such things as connecting
filaments to attaching plates to leads has been done since
the begining. It is standard machine shop equipment.
Although, a side subject, I like Jay, consider tube manufacture
relavent to some of my computing equipment.
Dwight
Definitely wild, but just how varied are the devices
that could be built w/those simple, though elegant,
methods? All he did was build what appears to be an AM
receiver.
--- "Richard A. Cini" wrote:
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OMG, that is soooo amazing. Proof positive that
you
can make anything with
the proper tools. Mesmerizing.
On 1/8/08 1:53 PM, "jpero at sympatico.ca"
wrote:
http://blog.makezine.com/archive/2008/01/make_your_own_vaccum_tube.ht
This is in french but the video is priceless! 17
minutes long.
Worth taking your favorite drink and take a
seat.
ml
Cheers, Wizard
Rich
--
Rich Cini
Collector of Classic Computers
Build Master and lead engineer, Altair32 Emulator
http://www.altair32.com
http://highgate.comm.sfu.ca/~rcini/classiccmp