Homemade Vacuum Tube

dhaen · 7th November 2005, 09:36 PM

On this page is an attempt to make one from scratch. Great work!
He has many other interesting projects too.

Trout · 8th November 2005, 03:03 AM

Oh My, Interesting Stuff,
I Actually did .THIS PROJECT in the 60's as a science fair project in the 7th grade, Got to the state finals & honorable mention.

Our biggest problem was on the receiving end, The Photocell we used picked up to much light from the gymnasium lights and of course the dreaded 60cycle hum was very well amplified.

The following year we built a liquid laser! Mind you that lasers were in their infancy back then. Did I ever mention the effects of a 2 joule cap discharge on a human?

I probly shouldnt tell this story, (unless you all beg) But I will say that it is exactly why kids should NOT play with high voltage devices under the age of 16!

Trout

rcavictim · 8th November 2005, 05:16 AM

There are homemade vacuum tubes being made in Russia and China now that actually look like the real thing! Electroharmonix is one I can think of.

Trout · 8th November 2005, 06:06 AM

Quote:

Originally posted by rcavictim
There are homemade vacuum tubes being made in Russia and China now that actually look like the real thing! Electroharmonix is one I can think of.

Nawwwwww Valve Art for sure

rcavictim · 8th November 2005, 06:15 AM

Quote:

Originally posted by Trout

Nawwwwww Valve Art for sure

Do Valve Art also suffer from apparently poor bake out, (leading to) incandescent grid segments and short lifetime issues also?

I NEVER saw such a quality problem trend with NOS tubes from the majors back in the good old days or surviving stock I use today.

Miles Prower · 8th November 2005, 09:56 AM

Here's a better way. Unforch, it's in French.

Geek · 8th November 2005, 01:45 PM

Quote:

Originally posted by Miles Prower
Here's a better way. Unforch, it's in French.

Here's the "engrish" version

AlekZ · 7th August 2006, 11:59 PM

Hi,

I try to do glass triode. Tommorow I'm going to close bulb

So far I was testing this construction during vacuum pumps working.

There are my vacuum instrumensts

:

http://www.trioda.com/php/forum/download.php?id=5355
http://www.trioda.com/php/forum/download.php?id=5353

The pressure is ca. 1*10^-6 Torr (due to diffusion pump).

Triode parameters:

http://www.trioda.com/php/forum/download.php?id=5368

AlekZ · 10th August 2006, 08:04 AM

Lucky, my tube still alive

http://www.trioda.com/php/forum/download.php?id=5398

I'd like to invite you to my page

http://www.trioda.com/alek/index_e.htm

so far there is poor english version, but I'm going to change it.

adhoc · 11th August 2006, 04:55 PM

AlekZ,

There is some very cool work on your pages - good job!

7th November 2005, 09:36 PM	#1
dhaen diyAudio Moderator Emeritus Join Date: Jun 2002 Location: U.K.	Homemade Vacuum Tube On this page is an attempt to make one from scratch. Great work! He has many other interesting projects too.

8th November 2005, 09:56 AM	#6
Miles Prower diyAudio Member Join Date: May 2005 Location: USA Blog Entries: 2	Here's a better way. Unforch, it's in French. __________________ There are no foxes in atheistholes www.dolphin-hsl.com

7th August 2006, 11:59 PM	#8
AlekZ diyAudio Member Join Date: Aug 2006	Hi, I try to do glass triode. Tommorow I'm going to close bulb So far I was testing this construction during vacuum pumps working. There are my vacuum instrumensts: http://www.trioda.com/php/forum/download.php?id=5355 http://www.trioda.com/php/forum/download.php?id=5353 The pressure is ca. 1*10^-6 Torr (due to diffusion pump). Triode parameters: http://www.trioda.com/php/forum/download.php?id=5368

11th August 2006, 04:55 PM	#10
adhoc diyAudio Member Join Date: Jul 2005 Location: Australia	AlekZ, There is some very cool work on your pages - good job! __________________ jitter critter.

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8th November 2005, 03:03 AM	#2
Trout diyAudio Member Join Date: Nov 2004 Location: Midwest Madman	Oh My, Interesting Stuff, I Actually did .THIS PROJECT in the 60's as a science fair project in the 7th grade, Got to the state finals & honorable mention. Our biggest problem was on the receiving end, The Photocell we used picked up to much light from the gymnasium lights and of course the dreaded 60cycle hum was very well amplified. The following year we built a liquid laser! Mind you that lasers were in their infancy back then. Did I ever mention the effects of a 2 joule cap discharge on a human? I probly shouldnt tell this story, (unless you all beg) But I will say that it is exactly why kids should NOT play with high voltage devices under the age of 16! Trout

8th November 2005, 05:16 AM	#3
rcavictim diyAudio Member Join Date: Jun 2004 Location: Cool end of a soldering iron NW of Toronto	There are homemade vacuum tubes being made in Russia and China now that actually look like the real thing! Electroharmonix is one I can think of.

10th August 2006, 08:04 AM	#9
AlekZ diyAudio Member Join Date: Aug 2006	Lucky, my tube still alive http://www.trioda.com/php/forum/download.php?id=5398 I'd like to invite you to my page http://www.trioda.com/alek/index_e.htm so far there is poor english version, but I'm going to change it.

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