Even though there is still wide spread interest in experimenting and building projects with vacuum tubes and almost every tube ever made is still available except for the very first ones made, there are none of the old type bread boarding sockets made now.  And those that occasionally come available on Ebay are very pricy.

These sockets can be made for $3 each or less if you have some non-working tube equipment that you can scavage the sockets from.  Even bought new the sockets should be $2 or so.  Add to that a few machine bolts and nuts, a piece of wood for a base and a few feet of hookup wire and you have all you need.

Parts needed for each socket.

(1)  6.5" of 1x4 pine or poplar works well
(1)  8-32 x 1.25 machine screw
(3)  8-32 nut
(3)  washers to fit the machine screws
(1)  tube socket of the correct type
(2) 1"x .25 tube for socket support
(2)  1.5" wood screws that fit the socket mounting holes
(4)  adhesive rubber feet
hookup wire (get some 600 volt insulation wire)

I picked up a box of 100 each of the machine screws, nuts and washers because they were cheaper that way.

Step 1: Cut wood to size for bases.

I made my bases 6.5" long.  That's long enough to locate all of the needed terminals and is hefty enough to not move around too much when in use.

Use sand paper and smooth the cut ends and round over the sharp corners.

Most modern tubes have either 7, 8, or 9 pins.

Mark your base with the number of terminals you need. Marking for holes as shown, 1-1/8" horiz. and 1" vertically would server for any of the tubes and make a nice looking symmetrical project.

Drill the holes using an 11/64 size drill or what ever you have that will fit the machine screws.  Drill the holes carefully and as straight up as possible.  It would be a good idea to use a drill press.

Use the sandpaper again to clean up the holes.

You can finish the wood if desired.  Spray lacquer would seal them and prevent them from absorbing moisture from the air.  Most projects would not be bothered by this.
<p>Just a note to let you know I have added this ( a year ago ) to the instructable:</p><p> Comprehensive Guide to Electronic Breadboards: A Meta Instructable</p><p>&gt;&gt; <a href="http://www.instructables.com/id/Comprehensive-Guide-to-Electronic-Breadboards-A-Me/" rel="nofollow"> http://www.instructables.com/id/Comprehensive-Gui...</a></p><p>Take a look at a bunch of ideas for using breadboards.</p>
For octal sockets, it is easier, just get one of these: <br> <br>http://www.jameco.com/1/1/26784-27e122-blade-octal-relay-socket.html <br> <br>I've used these to breadboard amps before. You don't have to spend $7 either, I've picked them up at hamfests for about $1 each.
where can I get vacuum tube...................!
They are widely available on the internet. There are thousands of ebay sales every day. There are sellers who have websites where they are available for very good prices.<br> <br> Figure out what you need and then go &quot;shopping&quot;.<br> <br> If you're just looking for something to experiment with you should be able to get s small lot price of less than a dollar each.&nbsp; Or if you have a specific need you may have to pay a bit more per tube.<br> <br> Good luck and have fun.
And what is a vacumn tube. <br> <br>just kidding
They are magic things in glass envelopes that glow with magic beams.
I bet they got hot really fast and used lots of electricity! <br> <br>Good thing transistors and IC where made.
I used to repair tube radios....still do when a collector needs one repaired. You can use silicone diodes to jump weak and bad diod sections of a tube. Like 1n4004 and 1n34a. <br>They are fun to play with, like building a 1 tube short wave radio. <br>It is great to see people still interested in them. To repair bad filiments i used to send 120 volts through the filament to weld it back togather. Doesn't always work but it used to work about 80% of the time.
There are lots of people still interested and more getting interested in tubes. And it's not just the old guys either. Thanks for commenting.
At first, it looked like really big spider.
I know. I even used that comparison in the construction description.
Sorry, I didn't see that.
smart! I've always wanted to mess with these, but just haven;t found the right project yet. What are you using them for?
To learn about tubes. But I also build and repair tube amps and radios.
The only thing you need to learn about tubes is that today they are largely obsolete. Throw that old garbage out!

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