Author Topic: Hand-made vacuum tubes (Read 5612 times)

amigo · « **on:** January 10, 2008, 01:00:25 AM »

Strangely no one posted this and it's been going around the Net:

http://paillard.claude.free.fr/

The video shows some true handcrafting and elegance...just how many people in the world can say they make their own vacuum tubes. Hats down to this gentleman from France.

ken_nyus · « **Reply #1 on:** January 10, 2008, 03:06:58 PM »

Very interesting, a great video showing the whole process, even the testing of the completed tubes.

neptune · « **Reply #2 on:** January 11, 2008, 01:33:33 PM »

Somewhere in the distant past, i remember two similar articles. The first, from the 1920 showed a home made diode valve based on a small car bulb. the anode was actually OUTSIDE the glas envelope.
second article, more modern involved breaking the glass and adding an additional envelope, and the use of a glue gun and vacuum pump[ Bill Beattys science pages?]

pese · « **Reply #3 on:** January 11, 2008, 04:23:06 PM »

Quote from: neptune on January 11, 2008, 01:33:33 PM

Somewhere in the distant past, i remember two similar articles. The first, from the 1920 showed a home made diode valve based on a small car bulb. the anode was actually OUTSIDE the glas envelope.
second article, more modern involved breaking the glass and adding an additional envelope, and the use of a glue gun and vacuum pump[ Bill Beattys science pages?]

@neptune

no he have take from the 2 filament (2 time 21watt) lamp ON
wire as heater. the 2 Wire (unheated) as anode !.
the outside of the glass bulb he have used with an alu-foil as "grid".

he have found some mycro-amp electron flow (heater to anode) and he can use
the gris (outside) to change this current.
(amplifiieng this.

attention the 2 time 21 wat lamp have 4 wires out the glass .
(under the metal base socked !)

Pese

armagdn03 · « **Reply #4 on:** January 11, 2008, 10:11:51 PM »

wow, this is probably the damn coolest thing I have seen on this site in a long time.

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Author Topic: Hand-made vacuum tubes (Read 5612 times)

amigo

Hand-made vacuum tubes

ken_nyus

Re: Hand-made vacuum tubes

neptune

Re: Hand-made vacuum tubes

pese

Re: Hand-made vacuum tubes

armagdn03

Re: Hand-made vacuum tubes