For those looking to replicate a tube-based radio like this one, [Dan] has made all of the schematics available onhis GitHub page. The only other limitation to keep in mind with a build like this is that it tends to only work on a very narrow range of frequencies without adding further...
For most of us, vacuum tubes haven’t appeared in any of our schematics or BOMs in — well, ever. Once mass-manufacturing made reliable transistors cheap enough for hobbyists, vacuum tubes became pretty passe, and it wasn’t long before the once mighty US tube industry was decimated, leavi...
Fig. 12: 1946 adverts that offer schematics and other services for using surplus Wehrmachtröhren(source: "Funkschau", Vol. 18, Nr. 1, June 1946, inside of front & rear cover page)PARTS OF THE RV12P4000 TUBEThe actual glass tube ("Glasskörper", "Kolbe") of the RV12P4000, is...
Just to add to my previous post, I notice there are now quite a few symbols that are non-simulatable so why not add tube symbols this way to start - at least we could then draw neat schematics. Cheers Ian by ruffrecords April 08, 2013 +1 For tubes! Great idea, this would ...
In the schematics, the 1uf's connect to pins 1 and 2. In the component placement diagram they connect to pins 1 and 3. Do I misread? Oeps, yes, thanks for spotting that ! now I don't know if the fault is in the schematic or the wiring diagram... I still have my paper drawin...
Here’s a quick diary of his build: …and here’s the layout that Alekos used for the panel: He also provided plots of the action of the various controls: Thanks very much for sharing this with us Alekos! If you’ve had success building one of the circuits that I’ve posted here ...
http://makearadio.com/tube/russian-loop-radio.php http://makearadio.com/visitors/jararat3-1.php http://aa1tj.blogspot.com/2010/12/solidarity.html http://gyraf.dk/schematics/Thermo_bottle_Tube_mic.GIF http://i16.photobucket.com/albums/b33/roddycluff/5672mic.jpg ...
Vacuum tubes are not typically found in software defined radios, but this interesting mix of old and new technology by Mirko Pavelski uses one in it's front end. The way it works is that the analogue radio circuit receives a small range of spectrum, and then the tube acts as a mixer, ...
Fig. 3. Schematics of a vacuum system for studying metalorganic functionalization. The functionalization process needs to take place in a vessel (chamber) with a suitable pressure (the scheme shows a high-vacuum chamber where vacuum is reached through a turbomolecular pump and a mechanical pump)...
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