Can you boast of making things with your own hands? Below you will find several instructions which will guide you through the construction process of a subwoofer and a telescope.
Sure, buying a subwoofer is a simple thing. But don’t you think that making it at home is much more interesting? First saw an old bookcase.
Make an aperture.
Install the driver units.
This is the final variant.
Don’t forget to use supports so that the appliance could be evenly held.
A lower part of the frame. All the holes were sealed up with hermetics.
Foam plastic is added to the frame.
Apertures for Bassreflex: 110 and 75. The first one is intended for a plastic tube.
Or a chips can.
As the can was short it was decided to make it longer with the help of epoxy glue which is dried for 24 hours.
Filling the can.
Assembly and preliminary installation.
Total view.
Assembly is continued.
Foam plastic is glued to the box.
The ready-made construction is connected with Microlab H500d.
Filter installation.
Fixing a paper band.
First variant of connection.
The cable.
Frames for Bassreflex.
Covering the left seams with glue.
Polishing and drying.
The back cover needs to be separated or cut in this case.
Fixing the band. Don’t forget that the bad must be of a good quality.
Next day it was obvious that some mistakes still were made. The aperture was made not in the right place. The bottom was fixed in the wrong way.
The view.
Coupling the new invention with dynamics of Monitor Audio Silver RX6.
In a couple of hours the passive appliance was supplied with an amplifier and a power block.
Amplifier construction.
Fixing the connectors.
Background view, final variant.
The process was followed by adding conditioners. The choice of an amplifier was far from being successful as it kept making a loud screeching sound and required another lowering filter. Besides, sound can be lost at ultimate volume and if you don’t like it tool loud don’t pay attention to it.
This very telescope was made in a regular apartment. It took several years for its inventor to assemble it.
The mirror.
This equipment help in telescope production.
Nog plate.
Cast polisher.
Molding.
Having passed through molding stage.
Getting ready for polishing. For this purpose colophony was used where resin was substituted for condenser lense. Steel disk was taken as a base.
Well-done.
Other examples of good work.
Plates are fixed on magnets making it convenient to change the aperture size.
Checking the parameters.
The frame is ready, now it’s time to fins nice screws.
Close view.
The view of a picture depends on the eye position. Then it’s needed to find an optimal position and enjoy the view. Spherical defect is not noticed and is small even if present.
Another perspective.
It is covered with a film now but rough surfaces can still be observed. The variant is not final though.
Now the telescope is ready and can be taken outdoors to have a look at some nebulosity located far from the lights of the big city.
My compliments to the intelligent Comrade who built this telescope. Telescopes are time machines. This Comrade will be looking into a distant past. I hope his/her Daughter becomes an astronomer.
Looking into the distant past? Just like a socialist…
I’ve got to admit it, you burned me…
A. Bunka here. Very cool. Radio Shack’s got most of the speaker parts. I rebuilt old blown out speakers with their parts. Much simpler than what this person did.
What kind of music do you listen to? Springsteen’s “Born in the U.S.A?” (just joking)
What do you listen to? The Internationale?
While we are on the subject of entertainment, have you ever seen “Volunteers” starring John Candy? Very funny movie, you’ll like it trust me.
I enjoy music, Frank Zappa was one of my favorites. I like old Hank Williams Sr. too. Many others, Bruce, I was never that crazy about, I thought a little known album of his, “Nebraska” was really good.
I realized that I had never actually listened to “The Internationale” what an incredibly boring piece of dog doo. Not worthy of the truly great Russian composers of the past, not remotely close. Give me Rachmaninoff.
I have not seen “Volunteers.”The Internationale” is not boring, but it’s not my favorite. My (lame) joke was a play on you being semi-patriotic. You know I’m not going to listen to Country (too red, white, and blue) or jazz or urban (too “cultural”) or most rock and roll (too loud- I get enough noise at the machine shop). That leaves folk, my early rising East Coast friend. Try Nick Drake, Tim Hardin, and Townes Van Zandt.
How About Jorma and Jack, aka Hot Tuna?
Ingenuity is still alive!
Stereo speakers and telescopes, yes.
Homemade nuclear reactors, no. (fellow in Sweden building a nuke reactor in his kitchen)
Because of some shortages in the Soviet era, industrious people improvised and created/altered numerous items. These DIYers could be their children.
Good informative article although as it started out it the projects looked fairly easy but as the article progressed it appeared that getting the desired result was way to complicated for me.With my meager mechanical abilities it would take at least a hundred years to finish either of these projects but to those of you that have the ability to create things I wish you the best.
I meant to say much too complicated for me -my apologies.
I luv those МБГО (metal-paper) condensers. True audiophile way.
Yes, Russian electronic parts rules! Strong and sturdy components….
I enjoy these “DIY Posts” here. Thanks for sharing.
I’d like to see a DIY on the Ekranoplan