youtube movie of making a vacuum triode.

[dwight elvey]

> 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:
>
>> 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:
>>
>>> This is in french but the video is priceless! 17
>> minutes long.
>>> Worth taking your favorite drink and take a seat.
>>>
>>>
>>
> http://blog.makezine.com/archive/2008/01/make_your_own_vaccum_tube.ht
>>> 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
>>
>>
>>
>
>
>
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