Electronics

Very easy to comprehend and wonderfully accurate. I was hoping to find such a site. Thanks for the help. Adam I. Derr Sr.

Fantastic-doesn't get any better

Great site!

Impressed it rolled back 50 years of memories

Thanks very much for the illustrations and diagrams on crystal radios.

excellent description of interesting project

I am a radio amateur and a crystal set enthusiast. I have seen many sites for crystal sets but this is the best site I have ever seen until now. Khalid Parvez ap2kd, Pakistan

Hi I love the photos of the workbenches. It's great to see that their are many as goofy as I am. The brotherhood lives in the Hearts of other Electric Knutzz... Bill fastskaterrr@yahoo.com

IT'S WONDERFUL.

Love this site! So much great information here! Keep it going.

Very well done with outstanding information from multiple sources. Great job!

This is the type off site that people need to connect with themselves again. Nothing beats a zero power crystal set to remind us that we do not need to be overwhelmed with mega-giga technology. Just enjoy.

Ah the memories, have built many of these circuits through the years. did my best research in the later 70's. Great website. well done. On files #55 & #123, the URL's are missing "/xximages" file #55, before "/tappedcoilrec" #1, #2, #3 . and file #123, before "/lastword" #1, #2 . The URL's as are , send the surfer to a error page. I have been through this site many times. and will be back often. aesops.tech

This site no doubt is the result of long research and patience for the sake of offering information regarding Crystal Sets and related topics.The content will surely bring light to those looking for detailed information. An incomparably detailed and satisfying site Possibly the best one.Congratulations!!!!!!!!!!!! Arman Sabciyan

we informative

Nice site for radio folk to do some mental gymnastics. W0GLT in Bend, OR

Everything you could want to know about crystal radios in one site! Good job! Love the Professor Coyle Resonance and Coil Calculator page. Use it all the time! 1 N 34? no... one in a million!

I keep referring to this sight when I need ideas and and as a references one of the best if not the best

Plenty of good usefull information regarding crystal radios. It`s a site I come back to look for idea`s.

love it.

This is a GREAT site! His inductance calculator is always bang-on with my digital LCR meter. Now that's reliability :-)

rockin! :)

WOW! This sure eliminates the math hastle. GREAT!!!

This is a great site. I am using it to educate a few interested Kids in RF Low tech. stuff. Thanks,

This is the best site for crystal radio enthusiast. It is very comprehensive, and covers all fields of crystal radio. ap2kd, Khalid Parvez, Lahore, Pakistan

great little project site - just what I needed!

this site is great!!!!!!!!!!!!!!!! i am a ham operator and i wish there was a site like this when i was a kid!!thank you w7zhq

I like this site a lot. This guy is being very generous with his knowledge. I plan to use his plans to build a crystal set.

I love this site. I have been following it for years.A very interesting and informative site

The very detailed and nice site for DX and beginners.

Excellent site for learning about, repairing, maintaining and using sound powered headsets

Informative and interesting!

great resource

your explanation on how a crystal radio works help me to under stand more thanks

I think its great but I dont exactly understand the diagram

Very good and interesting. I've constructed one of the crystal sets with encouraging results. Well done!

Very good site!

Good info, illustrations and photos

excelent - coyle resonance and calculator - AAA

A wonderful site, immeasurably valuable to young folks who seek an introduction into a world of wonder. For parents who seek time with their family, this is an excellent medium.

A showcase of technical innovation, imagination and fun..

I think its great i needed a simple coil calculator for my qrp radio experiments . keep up the good work Phil wa1jhv newport ri

As a rank beginner... I find this site great! good clear info..

I like vintage things from which i could learn the CONCEPTs!!! bravo Darryl!!

I had 2wo years of not lookin at and itīs always a joy to see so a grreat source of informatio on the subject.Cheers! The Best!

cool i m inventer

Great access to info otherwise unavailable!

Great! easy to follow instructions....

What a great web site, Thanks so much.