Wow that little receiver sounds great! Hard to believe the circuit doesn't have any batteries except for the audio amp. Great story! Thanks for sharing and take care.

Interesting Video. I would have like more detail regarding the Antenna and Ground.

Yes, that is working nicely. The simple design like that is good on sensitivity but not so good on selectivity. A "loose coupler" can get you selectivity at the cost of a little of the sensitivity. You may want to make one of those to continue your experiments. Double tuned systems give you better selectivity and possibly no loss of sensitivity. A tuned loop antenna experiment I did also worked out well. I suggest that for people who can't string antennas and grounds.

I've bought diodes with that part number from several sources which all claimed them to be authentic. (They are not) However I recently bought an old 300 in One Electronics Project Kit from a Goodwill store that has a genuine version of the diode included! These Project boxes were sold by Radio Shack and others and while the box is in tatters I found out the contents were 100 percent intact. I tried the first circuit in the included projects book and quickly learned why the kit was intact. There's no way a kid could have got it working as the built in switch for this project was faulty and the transistors included were different than the ones mentioned in the circuit diagrams. These were the days before the internet so a kid couldn't look the transistors up to figure out which one was similar to the one needed in the circuit. The kid that originally owned it probably got hung on that first project and gave up on the entire kit.

Loved the video, love all your videos. I have that same breadboard.🙂 Thank you!

Great little circuit Rick. I grew up with an older sister who often threatened me as well. LOL

Its a beautifully simple design.

If you really, really squint at my 'avatar', you can see that this is a favorite topic of mine. Truly enjoyed the video, thank you.

Great audio. No heterodyning so no oscillator whine while tuning. Interesting. Great story. Reminds me of bedtime battles with my brother. LOL Fun simpler times.

Fun little project and great story! You are lucky you kept from the bodily harm, haha.

I’ll give this a go, tomorrow morning.

Is "threatened with bodily harm" translated from "I'll beat you up!"? Lol I remember the first time I built a crystal radio from junk parts, didn't even have a variable capacitor, just had a piece of wire that would glide over a sanded off portion of the coil. I was so amazed that sound could be heard from the piezo ear piece on a device that had no battery.

Outstanding.😊

Thank a lot. Very interesting!

Thanks 🙏

How can a simple receiver interfere with a nearby receiver?

sir will you please make a vehicles detectors with radio transmitter and receiver? Like bicycle tail light. It will be nice project, cause this ensure safety.