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See Phil's CW REGEN FILTER article in NOV 2012. CQ Magazine and on our Radio Kits page at left.

Check out our new spider-web coil form on the radio parts page.

Check out the "Big Galena Crystal".

See our Nylon Mounting Parts

pic of jfet CRYSTAL SET Kit

Nearly 5,000 US radio stations occupy the AM and Extended AM bands: 530-1600 & 1600-1700. View our The Broadcast Band article for details.

DXing - listening to far off stations - has long been a part of the crystal set experience. Dxers strive to pull out those weak signals generally not audible with a beginner set. Optimizing a set for DXing requires a tuned antenna, high Q coils and HI-Z diodes, and more sensitive and matched headphones. See our technical articles pages for more details.

Still time to get those new antennas up before the first frost!

Crystal Sets? Yup, you’ve found an entire site about building Crystal Sets. The Society has been growing since 1991; still, some people are flabbergasted to find an entire society dedicated to Crystal Set radios or "Xtal Sets". One web surfer e-mailed, "I was so excited to find your site that I fell off my chair! "The Xtal Set Society publishes a newsletter, numerous books, and has parts and kits for purchase. A listing of newsletter articles from 1993 through 2007 can be found on the Technical Articles Page. Click on the earphones at left to browse and enjoy our site. You'll notice we've added parts, kits, and articles on ultrasound too, starting in 2009. --Patricia, The Crystal Queen Mum, Editor, Xtal Society News. Site last updated 04/01/2014.

**NEW** Check out our new recessed dial parts on the parts page. These accommodate a cap and reduction drive combination.

**NEW** Check out our new SPIDER WEB RADIO KIT on the Kits page.

**NEW** Check out our new MINI-MK484 AM Radio Kit on the Kits page. No antenna required!

**NEW** Check out our new Passive CW Filter Kit on the Kits Page. CW anyone? No batteries required!

**NEW** Volumes 20-21 of the Crystal Set Society Newsletter are now available in one bound form in the bookstore, titled: Antennas, Tubes and Regeneration. A new L-bracket for mounting our air variable 365 capacitors is also availabe; look in the Radio Parts page.

ob1 image Beginners: For Science Fair Tips, click on the link at left. To download a copy of the XS-OB1 OAT BOX Crystal Radio Kit manual CLICK HERE. The file is in PDF format.

If you enjoy showing crystal sets you’ve built and/or wish to see sets others have built, consider joining Queen Pat (NØGZZ) and I (Phil, WØXI) at the qrp amateur radio Ozarkcon Convention 2014 at the Castle Hotel in Branson, Mo., April 4-5. For details on Ozarkcon, visit their website: . If you are planning to go to Dayton this year, you’ll miss us. We're heading the other way to visit our grandkids in Oklahoma. However, consider bringing your latest crystal set build to Dayton for show and tell at Four Days in May on Friday night, the annual convention of the QRP Amateur Radio Club International:

Click on the Radio Kits page for our new antenna and grounding kits.

For the next 4 issues of the newsletter, we continue our "back to basics" theme started in the September issue. We're featuring articles on antennas, detectors, radio theory, and basic electronics.

The January 2014 issue has been mailed and includes the following: "A Further Change of Pace," Dan Petersen; "My Spider Web Crystal Setl," Phil Anderson, W0XI, "The Spider Web Coil," by Phil; "For the Electronics Beginner," Staff; "Mounting/Installing a 6-1 Reduction Drive," Staff; and Membership Correspondence.

We continue to stock the MK-484 TRF Radio on a Chip in a TO-92 package; see the parts page. We also offer a full kit based on the MK-484; see the Kits page.

Click on the ultrasound kits page to see our 12-inch diameter 8-inch focal length clear plastic parabolic dish and the upgraded RX3 Receiver, designed for finding power line RF interference and listening to bats and other bio-sources in the 35-45 kHz ultrasound band!

View our air variable capacitor and reduction drive mounting article by clicking here.

air variable capacitor connections

Check out our new Passive CW Filter Kit on the Kits page. CW anyone? No batteries required.

Check our our new ABS Panel and Chasis kit on the Radio Kit's page.

air variable capacitor connections

Click on the kits page for more detail on our new Infinite Impedance Detector, which improves audio quality over that of a germanium diode detector.

pic of Iinfinite Impedance Detector Kit