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"CRYSTAL RADIOS AND SPARK GAP TRANSMITTERS"

"Built to order by, AIRWAVE EXPLORER LABS"

Come visit the Airwave Explore Laboratory!!

These are a sample of some of the Crystal Radios I build. My Father and Uncle had a shop in Jackson, Michigan from 1919 until 1929. They designed and built custom Crystal Radios to sell. I am attempting to relive those Golden Times & Days of Radio by following in their footsteps. I have been a Ham Radio Operator for over 60 years now. This has given me the experience to handbuild these radios. I am trying to follow the schematics and designs my Father used. I use as many vintage parts as I can. I try to always use old tongue and groove, box joint, finger joint and dove tail boxes. I test and "Pot" my own crystals. I can build you a radio per your specifications or mine. Using your box or mine. I accept, PAY PAL, checks, or Money Orders. So light up that old oil lamp, put on your headphones and travel back in time to the Golden Age of Radio. PLACE CURSOR ON PICTURE FOR MORE INFORMATION


"Crystal Radios & Spark Gap Transmitters", NEW Table Top Crystal Receiver with signal strength meter, and antique set of Brandes Headphones. IT IS HERE NOW!


Excellent Link Coupled, Crystal Radio. Wavetrap,fine tuning, selectable Inductance, Signal Strength (S) Meter.  Both fixed Detector and Cat Whisker Detector using Galena Crystal.  Extremely sensitive and selective!!  Comes is an antique set of Brandes Headphones---$269.00 free shipping & insurance.

NEW Portable Crystal Receiver with signal strength meter, and antique set of Brandes Headphones. IT IS HERE NOW!

Excellent Variable Coupled, Crystal Radio. Selectable Inductance, Signal Strength (S) Meter.  Both fixed Detector and Cat Whisker Detector using Galena Crystal.  Extremely sensitive and selective, with a free set of antique Brandes Headphones!!  $209.00 + ship & Insu.



ROTARY SPARK GAP, "SOLD TO ANDY"



Excellent High Power Rotary Spark Gap. Beautiful Rotary Spark Gap. This is powered by a Thomas A. Edison Company of Orange, N.J.,  Motor. This motor is either A/C or D/C and is switched by a switch mounted at the rear of the motor assembly near the speed governor. SOLD,SOLD


Excellent High Power Spark Gap Transmitter, Original NOS Induction Coil built in Lansing, MI. It is illegal to connect this transmitter to and aerial and ground. For demo purposes, using a dummy load, only!!  SOLD.

"SOLD,SOLD!




Excellent sensitivity and selectivity!!

"SOLD--SOLD!

CRYSTAL RADIO, "THE MAGIC BOX" Excellent crystal radio with catwhisker and fixed detector. Variable coupling of link to tank. SOLD--SOLD.

Beautiful ca.1919 Excellent working crystal radio. Variable link coupling. Bottom of cabinet hindges to inspect the buss wiring and circuit components. SOLD--SOLD.)!



"SOLD--SOLD!

CRYSTAL RADIO, "THE STAR" Excellent crystal radio with catwhisker and fixed detector. Hi-Z and Lo-Z coupling of link to tank. SOLD--SOLD.

Beautiful ca.1919 Excellent working crystal radio. Variable link coupling. Panel hindges up to inspect the buss wiring and circuit components. SOLD--SOLD.)!


This Crystal Radio has excellent sensitivity and selectivity. All buss wiring, all brass catwhisker assembly. Rotary link coupling and fixed link are selectable from the panel, providing both Hi-z and Low-z tank circuit, post switch provides this choice. A second post switch changes detector from fixed to catwhisker. Complete set of instructions for radio and a primer on antenna and ground construction, are included.


"SOLD,SOLD!

Beautiful ca.1919 Excellent working crystal radio. Variable link coupling. Panel hindges up to inspect the buss wiring and circuit components. SOLD--SOLD.)!



SPARK GAP TRANSMITTER,"SOLD to Neil, K8RX" this is a working portable spark gap transmitter. Please Note, It is illegal to connect this transmitter to an antenna. For museum or demo purposes only, using a dummy load. Price is SOLD.

Beautiful ca.1919 Working Spark Gap Transmitter. This will operate on a battery from 6VDC to 12VDC. Adjustable spark gap and induction coil interrupter. SOLD, TO Neil K8RX (please note: Illegal to connect to Ant. and/or Ground)!


"KEEP WATCHING, new crystal radios coming!"



Crystal Radio, link coupled, SOLD TO ALAN, W4AJM

Beautiful ca.1919 Crystal Radio, Link Coupled, Post Switch for coupling configuration, catwhisker and fixed detector. Box is 75+ years, all components are ca. 1919/20 and vintage.  All buss wiring.Sold to Alan, W4AJM!!


COHERE, SOLD.

Beautiful ca.1919 Iron filing Cohere, Dark Marble top with green felt bottom, wooden base, space adjusting knob,SOLD


Latest addition to the Crystal Radio Receivers, Sold.

Beautiful ca.1919 Crystal Radio, THE ORPHEUS, SOLD !!

"The MAGIC BOX, Crystal Radio, Covers AM Broadcast Band" Sold to Grover K7TP

Beautiful ca.1919 Crystal Radio,SOLD to Grover K7TP!!

SOLD

"Spark Gap Transmitter, Sold to Grover K7TP"

Beautiful ca.1919 Spark Gap Transmitter! SOLD to Grover K7TP



Ca. 1919 Galena Crystal Radio. Excellent variable coupled crystal radio with a wave-trap.  Also incorporates a fixed detector for those not wanting to look for the Hot Spot on the crystal.  Excellent sensitivity and selectivity.SOLD TO GEORGE IN RUSSIA

"Custom Radio going to George in Moscow, Russia"


"Custom Radio going to Jan, N5YPK"

Custom built for Jan, N5YPK

"Beautiful Rotary Spark Gap"

Beautiful Rotary Spark Gap. This is powered by Thomas A. Edison, Company of Orange, N.J. Motor. This motor is either A/C or D/C and is switched by a switch mounted at the rear of the motor assembly near the speed governor. Motor leads come out to two binding posts on the side of the unit. The motor has a speed control via a lever operated governor. Cup type lubricators are mounted on each end bearing assembly. Bearings, mounts, brushes and holders are in perfect condition. All governor and brush assembly parts are servicable from outside the motor case. Brushes are standard and available at local hardware stores. These are easily replaced with no tools other then your fingers. Rotary Electrode Wheel is high temperature composition material and has 8 contacting points. Fixed contacts are mounted on Christmas tree insulators and are fully adjustable for spacing to rotary electrode wheel contacts. Insulation factor for the high-voltage is 50 KV +. Motor is also insulated from the mounting board and is also shock mounted. The mounting platform is a beautiful piece of Black Walnut with only an oil finish. Four rubber feet on the bottom of the board protect your workspace. The Spark Gap Unit measures, Base = 12in. x 6.5in., Total height is 8in., Rotary Wheel diameter is 5in., Weight is 9 lbs. but with the special shipping box I have designed, shipping weight will be 14 lbs. This is one beautiful Rotary Spark Gap. for either your Tesla Coil Project, your Spark Gap Transmitter Project or for your antique radio museum. SOLD.  I accept M.O.'s or Checks. Thanks for looking, Roger K8CIX ------ Email-- k8cix@aol.com

"A New, Rotary Spark Gap is listed at top of this page"


"MAGNETIC DETECTOR--(SOLD)"
SOLD

"RADIOS THAT ARE SOLD"

The Original Airwave Explorer,  SOLD
Grandpa's Favorite, Crystal Radio,Custom Build for Jose in Spain, By Airwave Explorer,SOLD

"NOW HERE, EXCEPTIONAL SPARK GAP TRANSMITTER--SOLD"


An Original Spark Gap Transmitter, Mfg. by my Father in approx. 1916. This has been restored using most of the original parts----SOLD
New, Ultimate Crystal Radio. This is a link coupled radio.  Two links, one variable coupling and one fixed.  Original Post Switch select detector coil inductance and selects receive frequency. Original and vintage parts used in construction.  80+ year old cabinet is finger joint (box joint) construction. Frequency range is both Broadcast and Short-wave. Panel is black, acrylic, full 1/4 inch thick.  Felt bottom to protect your table. By Airwave Explorer, SOLD
The Aerodex Crystal Radio, Airwave Explorer, SOLD

"SOLD"


The Magic Box--Crystal Radio, Sold.
The Ultimate Xtal Radio, built for me, by me, Sold w/Headphones.
The Wonder Boy--Crystal Radio, Sold.
The Grandpa model,  Sold.
Satisfied Customers of Airwave Explorer.

Additional radios

FAX #1-866-289-3465 (Toll Free) or Email: k8cix@att.net

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