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.
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.
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 ;)
Hi thanks for your response, I found really cool kit for such radios on ebay for about 20$ i think and ordered it. has all the necessary stuff plus intstructions and i think it will be good starting point because i have zero knowledge on electronics but would like to improve :)
@AbnormalEthnos, it really wasn't that hard. It's basically a Philips type 4-stage transistor amplifier (which you can find schematics on the net, google it) in combination with an absolutely standard crystal radio receiver. In other words - all you do - is to combine these two principles. You can't really make any mistakes. Re-generative receivers however...is a different story.
I've modified into a regenerative now by adding a 5'th transistor, a BF240. Very VERY noisy, have to work on it a bit, and then I'll upload a video when it's got a usable sound quality.
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.
rEdf196 2 months ago
cool,so took get the circuit diagram
monkeyssj5 6 months ago
@monkeyssj5
Thanks, there will probably be a much better video for this stuff in the future, so stay tuned ;)
Jo0ngle 6 months ago
so crystal radio == SW radio? with a small coil?
thewii552 7 months ago
@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.
Jo0ngle 6 months ago
Oh I'd love to see the schematic. Could you please show me the schematic ?
Thank you !
joeypc87 1 year ago
sounds like shit u have zero talent.... JOKE!! EXCELLENT RADIO !!!!!!
jimepage 1 year ago
i would really like to get a schematic for this ,..., neat n'nice
adeshization 1 year ago
I see 30 Winds on the coil. Where do you think you were receiving at?
Do you have a schematic too? :-) Thanks !
855h0le 1 year ago
How much did it cost to build with all the parts?
paulthez0mbie 1 year ago
@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 ;)
Jo0ngle 1 year ago
Hi thanks for your response, I found really cool kit for such radios on ebay for about 20$ i think and ordered it. has all the necessary stuff plus intstructions and i think it will be good starting point because i have zero knowledge on electronics but would like to improve :)
AbnormalEthnos 2 years ago
Hi can you please put up some sort of guide on how to do this plus where can i get the breadboard ?
AbnormalEthnos 2 years ago
@AbnormalEthnos, it really wasn't that hard. It's basically a Philips type 4-stage transistor amplifier (which you can find schematics on the net, google it) in combination with an absolutely standard crystal radio receiver. In other words - all you do - is to combine these two principles. You can't really make any mistakes. Re-generative receivers however...is a different story.
Jo0ngle 2 years ago
Sounds like it has the sensitivity, but very wide selectivity! :-)
batterymaker 2 years ago
Indeed it had.
I've modified into a regenerative now by adding a 5'th transistor, a BF240. Very VERY noisy, have to work on it a bit, and then I'll upload a video when it's got a usable sound quality.
Jo0ngle 2 years ago