Still time to get those new antennas up before the first frost!
Crystal Sets? Yup, youve 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 12/05/2013.
**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.
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.
Click on the Radio Kits page for our new antenna and grounding kits.
For the next 6 issues of the newsletter, starting in September - our starting time for each new xtal year - our theme will be "Back to the Basics." We'll feature articles on antennas, detectors, radio theory, and such.
The November issue has been mailed and includes the following: "Elmer and The Young Ham on Vacuum Tubes," by Dan Petersen, WØOIL, "Debugging a Kit Not Working," Xtal Staff, "A 700 Hz Oscillator Featuring Quadrature Architecture," by Phil, WØXI, "A Low-Level AM Test Generator Based on the SA602/NE602 IC," and "A Mini-AM Band Loop Radio" by Phil, "Simple Ear Piece Tester," by Xtal 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 and the anodized front panel picture below.
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.
Check our our new ABS Panel and Chasis kit on the Radio Kit's page.
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.