Links and other
(26 OCT 06
Society - a must-visit site, a few select links. Two
on line. If you haven't built a crystal set before, the Oatbox
about as reliable as they come, and never fails to bring a smile the
anyone who hooks it up to an antenna and ground for the first
Sponsors a discussion group (see below)
*Al Klase - has an outstanding page here. I printed it out immediately. Includes a short course in Crystal Radio 102, some neat info on headphone and earplug sensitivity, coil philosophy, and rock stands he's made. See his super radio using toroid coils.
*Welcome to Ben Tongue's Technical Talk - Ben Tongue's thoughts on xtal set design, headphone testing, and much, much more. Ben is the "real deal" when writing about this stuff, so make sure you have some time to spend on his site. Even has a section on Edison and the radio business. He keeps adding new stuff; check out how to use those magnet coils to their best advantage.
* Crystal Radio Web Site Darryl Boyd's site on sound powered phones, oodles of "lost" crystal set construction articles and a bunch of other stuff just keeps getting better. Largest collection of published crystal set plans available.
* Designing a DX Crystal Set Mike Tuggle on how to build a real DX set.
*The VE7SL Radio Notebook Steve Mcdonald's site. Crystal sets and ham radio. A nice synopsis of just about everything we have learned about making a dx crystal set.
*Gollum´s Crystal Receiver World. - some interesting circuits, including how to bias a detector . Updates page occasionally, and now has a couple of FM crystal sets and a nice looking double tuned selective set. Be sure to visit the visitors articles sections for the two articles by Berthold Bosch
* Science Toys Chapter 4: Radio nice detailed pictures on their progressive project. Also has the simplest AM transmitter you'll ever find.
ARRLWeb: Science Fair/Merit Badge Projects has a QST crystal radio project you can download in PDF
Goldenberg Lab detailed pdf instructions for a classic slider.
*Crystal Set Competition from Queensland Australia - beautiful rigs, and plans for the prizewinning Mystery Crystal Set (the rage in 1932).
Improvement of the "Mystery" some more notes on the original by Ken
Bizarre Stuff You Can Make in Your Kitchen finally found a new home. Super site.
* The World of Vintage Radio and Electronics A very nice new site from the UK with bunches of reprint articles from Radio Constructor magazine, and more to come.
Crystal Radio Circuits by Wenzel Associates, with some new stuff on diodes added
A crystal radio set for Dad's Mum's and beginners A nice site; worth visiting, then visit Ian's very fine Electronics tutorials site.
Loop Xtal Set
Crystal Radio with Loop Antenna
Electronic Circuits has too-simple xtal set plus one with an op amp booster
Adventures in Cybersound A 'Sensitive' Crystal Radio , and A 'Selective' Razor Blade Crystal Radio . Both salvaged before Gnome Technologies reformatted their site. Some nice stuff on alternative detectors. The rest of this site is great too, including a foxhole radio design by Lance Borden
Antique Radio Page: Articles - "Foxhole Radios" .
Crystal Radio A collection of nice stuff from Dan Peterson, a regular XSS contributor
Ed Ganger's coil winding formulas for single and multilayer and spiderweb coils.
CRYSTALª@RADIO site in Japan; nice set, but most writing in Japanese. Look at the rest of the site too.
Germanium diode selection a nice, objective comparison of diodes "over there"
Headphones how to fix 'em.
Tom Polk's kid radio - what to do with those empty soda cans
Very nice looking XTAL SET
Here are two homebrew sets from the 20's. Home Built, 1 Crystal Set or Home Built, 2 Crystal Set
Electrical Engineering Training Series. Courtesy of the US Navy Training command. Worth reading.
136khz.htm Read the part about antennas - the long wave guys have to deal with too- short antennas also, to the extreme.
The Crystal Set Some nice stuff from Brian Hawes' files.
Marconi magnetic detector try to make one of these and get it working.
FM only: Low Tech FM Radios for those of you who asked
Cristadyne wierd stuff from the past. Got any zincite?
J.C. Bose: 60 GHz in the 1890s very serious crystal sets - not for kids
Producing wound components detailed discussion of coil construction
Inductors. - some dope about coils and such
The Unusual Diode FAQ
Museum of American Heritage take a course on building a crystal radio(if you are a kid near Palo Alto, CA)
Spark, Bang, Buzz and Other Good Stuff. includes making an oscillating diode out of common materials. This guy is absolutely nuts. Wonderful site.
An FM Crystal Receiver looks like you can make this one without too much trouble
My Crystal Radio Page some sets by Adam Vaughn
Crystal Set Corner a nice tutorial from Wireless Review
Rook Coils for Crystal Radios a different way to make basket coils
Philip Miller Tate's Web Extravaganza! Ramblings from Dr. Whiz.
Vintage Radio Repair and Restoration - RF Signal Generator
Image 618x875 pixels a simple dip meter.
AM Loop Antennas
Lyonodyne style Crystal Radio Lou may have dug up the
How to make a Simple Radio Set
Active Antenna for those days when the wind knocks down the tree.
Crystal Radio.html a school project using a simple variable capacitor.
Dave Schmarder has a nice site with his crystal and tube sets. Will be happy to let you buy as well. Be sure to read his experiments with Ben Tongue's "contra coils".
Klunky Schematic Drawing Make your schematics on line
TubePad 5.0 another way to make your schematics.
Create Schematics With Paint!
Fun With Tubes starts you off with a crystal set and walks you through building simple one-and two-tube sets.
Crystal Sets Some history, some tutorial, and perhaps more to come..
Crystal Radio Page Nostalgia plus by Jim Frederick. He also features Cushman motor scooters.
Crystal Radio School Club Project a nice middle school project page
W4WCG AMATEUR RADIO Clifton Gantt has some nice stuff on crystal sets
http://physicsfiles.com/xtal_radio_project.PDF A very nice Green crystal set from a physics class; everything recycled.
Vintage Radio and Electronics A variety of articles from the British press.
CRYSTAL RADIO Dr Duggee has a couple of simple sets, and an interesting loop.
Discover Circuits, a collection of 7000+ free electronic circuits schematics to solve design problems
http://www.crystal-radio.eu/ A site from the Netherlands with nice looking sets
SHORTWAVE CRYSTAL SETS AND INFO
GW0VMR's Short Wave Crystal Radio Set can't get much easier than this.
Shortwave "Mystery" Crystal Radio with variations, by Ken Harthun
HOMEBREW QRP IS GUD 4 U strip the receiver down to a shortwave passband xtal set, or just build it as shown and copy CW and SSB. Audio amp optional.
Shortwave Crystal Set Al Klase's experimental sw set (pay attention here - Al knows whereof he speaks).
The Creative Science Centre build a rough science shortwave set using a sauce pan capacitor
International Bureau > FCC HF Broadcasting Page good info on the shortwave bands.
HFCC Public Area Shortwave skeds from the High Frequency Coordinating committee, have to noodle around on this a bit.
Glenn Hauser's World of Radio
YAHOO! PHOTO ALBUM S (more than just pictures)
Xtal Set Photos by Dr. Whiz
Charlie's SW Xtal Set
Loose Coupler's pix
Mike Lee's gallery
Richard O'Neill's posting of NBS circular 121 from 1922 on building a still hot crystal set
Bill Hebbert's photos rook coils and other stuff.
REGENERATIVE AND OTHER RECEIVERS WITH THREE (OR MORE) LEGGED DEVICES
Diotran Radio - a simple regenny
Harry's Homebrew Homepages another couple of regens and other interesting stuff
Regenerative TRF Receiver
W2UW's 1-FET transmitter/receiver
Thermoradio a candle powered regenny? Hmmm.
One transistor FM radio project a supergenny; pretty straightforward after you assemble the parts.
CK722_Webpage all about the transistor that got many of us started
radios Bob's site features an early one-transistor receiver from Knight Kits (oh, where can you find those coils?), a one transistor Heath AM transmitter, and more.
Australian Vintage Radio! See if you can make one of the valveless headphone amplifiers. Also has a simple little one-tuber. (gotta make one soon)
Old-Time "Interflex" Radio Receiver a Hugo Gernsback project
Transistors a nice tutorial on how they work.
Radio Frequency Schematics three projects, including a short wave ZN414 based set, plus a bunch of other nice stuff
Regenerative Receivers nice page from Wenzel
Simple Radio and other stuff from Hans
Elettronica il Portale Italian site, but you can figure out
details of the two transistor AM Reflex radio
The Ingenious Circuits of Sir Douglas Hall from Radio Constructor/
Philmore radio kit alas, construction details lacking, but you can make it with perseverance, I think
Simplest RF transmitter
Chapter 4: Radio a cute way to make the MK 484 receiver. Will sell you the parts.
A nice variety of circuits
Regen Shortwave Receiver
The Transistor Museum
AM Query -- AM Radio Technical Information -- Audio Division (FCC) USA helps answer the questions about why you can't hear them, or can't avoid them- lists frequency coordinated n. and s. american stations- and then go to the next link to:
Distance and Bearing Calculations Between Two Sets of Coordinates (FCC) USA
How far is it? another distance program with some coordinates of selected cities
Combined BCB Freq List! Good lookup for those stations you never heard of. Includes stations below the MW band.
FCC AM Database Search not the official site, but works nicely, even when the agency budget is still in committee.
AM Logbook nice layout which shows program formats for many stations; useful for those that only ID once an hour.
Lightning Explorer Free Page gives you a map of the US showing lightning strikes within the last two hours or so - find out where that static is coming from.
The DXZone Guide to Ham Radio World
The MIT List of Radio Stations on the Internet
Azimuthal Equidistant (Great Circle) Projection Map go here to make an azimuthal map with your location in the center.
Earth at Night ever wonder why you never hear some parts of the world?
Earth View get a real time view of where it's dark, and where it's not
The official U.S. time with a day/night map.
G4FON has as good a Morse code tutorial and trainer as you can get for the effort of downloading. Uses the Koch method of code instruction, but you can just use it to brush up on your receiving.
AM Band Slogans At last, a site that matches station slogans to frequency. Too bad it won't separate those Radio Disney stations that are on the same freq.
sets, and kits
No recommendations on any of these except as noted. If you have a link to add, tell me and I'll look at it; if you think someone doesn't belong on this "mantle", tell me about it
Scott's Crystal Radios Great classic headphones and
rigs and repros and other stuff to use them with. You can ask if
looking for something special. Visit his headphone heaven and get
serious headphones. Now has some nice drawings of the Heathkit CR
1. Learn how to mount your galena crystals.
* Larry's Genuine "Rockstand" Detector Handcrafted with cheap American labor; his (he subsidizes these by keeping a day job). If you get one any place else, you're probably paying too much for too little. Larry used one of these in the dx contest to clean out the state of California, western Canada and half the Baja peninsula. Includes an assortment of rocks with it for experimenting.(I have one)
*The Xtal Set Society - serious kits (at good prices) and some parts, including new 365 pF air variables, both single and double ganged (very nice ones - smooth and actually 20 - 400 pF). Also carries a one-tube regenny kit, designed by Mike Peebles. Carries a Rocket Radio - nostalgia buffs will like this one.
*Mouser - get the catalog sent to you; hard to use the online PDF version- best buy for enameled wire - lots of parts and service good - get your crystal earphones here too when you need lots of 'em. Detailed specs for many parts available on line.
Dan's Small Parts and Kits - Online catalog, something new all the time; has lots of neat buys in quantity. Stock changes, so keep checking back. Good prices and service.
*Playthings Of Past has some nice old stuff, and the prices are very good. Give Gary a try; you won't be disappointed.
* Peeble's Originals has some really neat old stuff, with more to come on this site.
*Borden Radio Company Lance has a nice collection of reprints of articles he has published, and some nice little kits, including a one-tube regenny. Will also sell you an original rocket radio or a new one.
*Antique Electronic Supply Online - kits and hard to find parts.
*Transtronics - Has a nice basic solderless xtal set by Techtronics similar to the older Radio shack version- check out companion solderless speaker/amp. Has some other neat looking radio/electronics stuff, such as an inexpensive rf signal generator kit. Minimum $20.00 order. Buy a bunch of the xtal sets and hand 'em out to every 10 year old in your neighborhood. See my review of this one.
Dave Schmarder's Homemade Crystal Radios. Also has some parts. Tube sets coming.
John Hern at the Happy Greyhound Has some nice parts you might use.
All Electronics Corp. Has the Techtronics kit for a good price.
Radio Shack - - best local buy for small parts, such as resistors, and plastic coated wire. Forget the solderless radio kits (okay, get the xtal set and do my project). Their gazillion and one electronic kits are useful for breadboarding. Will special order the high impedance crystal earlugs that come with the project kits; best price if you only need one or two; part no. is 10637379. If you aren't satisfied, no-hassle returns.
Rapid online A UK supplier that carries the MK 484 IC for a good price.
PV Scientific Instrument's Crystal Radio Page - hand crafted radios and kits - they may look pricey, but sets like these aren't junk box specials, unless you have a really nice junk box. Will also make you up a kit - just give them a price range. If you buy one of their sets and don't like it, send it to me for disposal and I will pay S&H - hi.
Crystal radios built to order Roger, K8CIX makes some beauties.
ElmerRadio a variety of kits
Circuit Specialists electronic parts. Online catalog.
Electronic Kits for Kids Mini Labs Slider
Ramsey Electronics has a crystal radio -looks pricey, but worth a try. Construction and operating manual downloadable in PDF format.
Einstein's Emporium has the Smithsonian kit and the Mini Labs kit.
Electronic Goldmine has an interesting assortment of electronics stuff, including AM tuning coils and polyfilm variables. Online pdf catalog. Good service, and will actually send a cash refund if out of stock on prepaid orders. Stock rotates.
eBay Listings: Radio Equipment auctions on neat radio stuff.
Ocean State Electronics a nice on-line catalog. Has some ZN414s (pricey). Good selection of air variables.
radiokits A "credit card" radio, limited edition (instant classic?) By Fran Golden - circuit design probably like the new RS kit, but costs more. Novelty design..
Dick Smith Electronics -Australia's answer to Radio Shack - back of catalog has a nice electronics reference section.
Brian Smith's Wireless Workshop A place to go down under when Dick doesn't have it.
Amidon get your ferrite cores and toroids from the source.
MINI LABS CRYSTAL RADIO . And yet another source
Circuit Test Electronics another set from the UK. Search for "crystal" sells the MX901
C.B. Schrock It took two years, but they got their picture links working
Fair Radio Sales Company Inc. surplus and some nice matching transformers for high level detection.
Electronix Express good online catalog. Still lists the polyfilm variable capacitors.
ONE CHIP AM RADIO KIT a MK484 IC radio. Looks good, price looks right, but oh, those Canadian shipping charges. Buy several for your scout troop and amortise the shipping costs around.
Modules & Hard-to-Get Items from kitrus.com. has the MK 484 Chip and the polyfilm varicaps with knobs for good prices
American Microsemiconductor still makes and sells germanium diodes
Vectronics.Com Their crystal set; pricier than it ought to be for a simple set
MFJEnterprises.Com has a dip meter for sale.
Alfa Electronics-DM-4061A Grid Dip Meter
eHam.net Classifieds - Search for used test equipment
Phil Seltzer Online Toy Catalog buy a set similar to the current RS kit in bulk - the minimum order is a bit high, and I can't say what the set's like, but the price is reasonable.
C & S Sales -- Product Detail has a Maxitronix set similar to the current Radio Shack version. Watch out for the earplug (see my review of their 901 kit).
Micro-Mark here is some low melting point metal for mounting rocks
CRYSTAL RADIO Buy the Smithsonian set in Mexico - oooh, those prices!
Pete's Electronics Pete is in the UK and has an eclectic set of interests and some parts you might be looking for, including germanium transistors.
Brainywires A crystal set with transistor amp assembled with magnets?
1N34A Diode Ceramic Earphone Crystal Earphone MPF102 2N2222A 1N3A has some parts to sell.
Old Time Crystal Radio Kits & Mystery Crystal Radio Kits to Build Yourself or Give as Gifts!
Radios Old toy crystal sets. Bring your checkbook
Byers Custom Chassis and Enclosures (by k3iwk)
Since I have been mostly been building my own, or helping students with theirs, I can't say how most of the kits will work out, but will put up a new page and post reviews if you send them to me.
Gasoline Alley Antiques NOVELTY RADIOS has some original Miniman rocket radios - very pricey, but some people will spend anything on nostalgia.
Welcome to oldradios.com - offers some of the small radios of yesteryear as collectors items. Take a look and bring your checkbook.
GOLLUM has some neat pix at his site too.
Antique Radio Classified: Radio on the Web order sample copy of the magazine on line; you might get hooked
Antique Radio Resources links page to a lot of antique radio sites, including some pix of early crystal radios.
Radiomuseum Rottenburg pix of some nice old crystal sets
Radios Antigos no Brasil a nice page from Brazil, in english
AGN another beautiful set
Xtal Radio Index Japaanese site with some nice pix
Misc crystal sets some nice old radios
Antique Wireless Association
Pre-1930 has some old sets and some interesting repros.
LWCA Longwave Home Page when you're ready to go down low....
Altair's Natural Radio Projects and when you want to really go low, go here (might need an amp)
Pickard, Greenleaf Whittier : some biographical notes on the crystal detector's inventor
Virginia City Radio Museum
Radio Operations Aboard Submarines . Not a darn thing to do with xtal sets, but oh, the memories...this fellow's last sub, USS Amberjack was the first one I served aboard
John Jenkins SparkMuseum
No. 176: Crystal Sets let John Lienhard at the University of Houston take you back to the joys of being 9. Link to a rare Sears xtal set ad as well. When you get to the bottom of the page, go to the rest of the series; marvelous reading. This is a later version of the episode: read them both No. 1695: Crystal Set
TELEGRAPH, RADIO, AND SCIENTIFIC INSTRUMENTS MUSEUM
Antiques of Science & Technology
toy crystal radios, germanium diode radios Some pix of "toy" crystal sets.
American Radio Relay League The A#1 organization for Hams. Use this site to check out the ham fests and swap meets near you.
Marine Radio History - Morse
Hammond Museum of Radio
Fessenden and the Early History of Radio Science
Transcripts of The Engines of Our Ingenuity the rest of John Leinhard's articles. Must reading.
Radios crystal radios from the 50's and 60's. Bring your checkbook.
Braun short bio of one of the other crystal set inventors
Crystal radio Some old xtal sets from a Belgian site
Rocket Radio another rocket radio remembrance
digital archives from the UK
Ediswan 1923 an early xtal set
United States Early Radio History
Crystal radio some nice looking sets
The Project Gutenberg eBook of The Radio Amateur's Hand Book, by A. Frederick Collins c. 1922
Popular Electronics Magazine of the 50s through the 80s
Rockheads in (Cyber)Space<>thecrystalsetradioclub -Cyberspace crystal radio club; bandwidth courtesy of Yahoo. Join in and connect with other rockheads. Anyone can watch, or join in. Lively postings and good stuff. (Got to join to see the pictures) This is a closed group, but email me and I'll get you an invite; same with the next group.
Have anything you want to add? drop me a line