DIY Shortwave radio

A little quick Shortwave radio I put together just for fun, took 1-hour to create on the breadboard, and a little more fiddling with the various coils for different bands. Quite fun, and a lot better audio quality than my previous attempt.

This one uses 4 transistors, basically just an "amplifier" construction connected to a diode, coil and a few caps + one long antenna wire. Not getting ground from a transformer, it just uses a 9 volt battery.

Category:

Science & Technology

Tags:

• homebrew
• diy
• radio
• crystal radio
• foxhole
• shortwave
• kortbølge
• radioamatør
• radioamateur
• oz4kid
• transistor
• breadboard
• 4 transistor radio
• diode receiver

[monkeyssj5]

cool,so took get the circuit diagram

[Jo0ngle]

@monkeyssj5

Thanks, there will probably be a much better video for this stuff in the future, so stay tuned ;)

[thewii552]

so crystal radio == SW radio? with a small coil?

[Jo0ngle]

@thewii552

Well, the construction is awfully simple, basically a transistor amplifier connected to a crystal-diode setup (no actual crystals used), but the same way a crystal receiver is constructed, check wikipedia to get the idea, I can't bring you links here, but google for crystal radio and click on the wikipedia link.

[paulthez0mbie]

How much did it cost to build with all the parts?

[Jo0ngle]

@paulthez0mbie ,

Well, since this was mostly built with parts I already had in my workshop, the cost was sort of ZERO. But if I were to guess the price of the parts, I know that the Breadboard itself cost about 30 bucks (they can be gotten smaller and cheaper), speaker...a dollar, 4 bucks worth of components I guess. All in all..you could probably build this for less than 10 bucks if you do some wise shopping around ;)

[rEdf196]

I just built a regnerative 2 tube set it gets great selectivity as wall as sensitivety compared to a SW crystal setup I am sure there are lots of transister regenerative SW radio schematics as well. or even a superhet design too.

[joeypc87]

Oh I'd love to see the schematic. Could you please show me the schematic ?

Thank you !

[jimepage]

sounds like shit u have zero talent....  JOKE!! EXCELLENT RADIO !!!!!!

[adeshization]

i would really like to get a schematic for this ,..., neat n'nice

[855h0le]

I see 30 Winds on the coil. Where do you think you were receiving at?

Do you have a schematic too? :-) Thanks !