Spiral PCB Coil Quad Schottky Diodes Crystal Radio with Earphone & Amplifier-SG For Sale

Spiral PCB Coil Quad Schottky Diodes Crystal Radio with Earphone & Amplifier-SGWhen you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.


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Spiral PCB Coil Quad Schottky Diodes Crystal Radio with Earphone & Amplifier-SG:
$48.00

Brand New Crystal Radio DesignUses a Spiral Printed Circuit Board CoilIncludes Radio, LM386 Amplifier, 8ohm Earphone and Alligator Clips
Here are the Amplifier and Radio SPECS..
----APMLIFIER----Model A23 (Without IC Socket)High Gain Crystal Radio Audio Signal AmplifierFor MonoNon-Piezo Magnetic8Ω (8ohm)Earphone or Mono HeadsetThis Model Has Volume Control With Knurled Finger Tuning Knob(Audio Volume Can be adjusted FromWhisper Quiet toLoud by Turning the Knurled Blue Knob)Turn the Knurled Blue Knob Clockwise to Increase volumePower ON/OFF Switch and LED IndicatorUltra Compact Small Size (1.1 Inch Wide and 2.1 Inch Long)Includes Mono Earphone with 3.5mm Male PlugIncludes a 6\" 3.5mm Double End Input CableUses a Low Cost A23 BatteryBattery is Included(Use the HandyPowerswitch to turn off the Radio toconserveBattery Power when not in use)DOES NOT WORK WITH PIEZO EARPHONESDOES NOT WORK WITH STEREO EARPHONES

DOES NOT INCLUDE ANY SCHEMATICS OR INSTRUCTIONS

Allows you to use Non-Piezo8Ω (8ohm)MagneticMono Earphone or Headset with your Crystal RadioFor Crystal Radio use:1) Connect the Crystal Radio Audio Output using the Included Cable to the Input Jack of the Amplifier2) Plug the Earphone into the Output Jack of the Amplifier3) Slide the POWER Switch to the ON Position (LED will glow in the ON Position)4) Rotate the Blue Volume Control (With Finger Knob) to adjust Volume
CONNECTION DETAILS ARE SHOWN IN THE PHOTO GALLERY

----CRAYSTAL RADIO----

Requires a Piezo Earphone if you dont use the Amplifier (Piezo Earphone IS NOT INCLUDED)Crystal Radio\'s will only work with aPiezoelectric (Piezo)Earphones. Cell Phone Earphones, MP3 Earphones, Transistor Radio Earphones WILL NOT work becauseCrystal radios only work with high-resistance earphones.COLOR Matched Knob and PC Board4 High Performance BAT46 Schottky Diodes
IT REALLY WORKS !!How does it work, the Forward Voltage Drop is as low as .28 Volts !!Even with the Low Forward Voltage Drop, a single Schottky Diode may not perform best due to the internal resistance of the Diode. To decrease the Diode Resistance I have connected 4 of them.THIS RADIO COMES FULLY ASSEMBLEDMeasures 54mm x 96mm and is great for Beginners, Survivalists or Advanced Enthusiasts
Switch enabled Coil expands the frequency Range to help cover the AM Radio Band
Double Layer PC Board Coil
NEWEST PCB Design allows you to connect an earphone to the Metal Screw Posts or use the 3.5mm phone jack mounted on the PC Board.
Built in Audio Jack
4BAT46 SchottkyDiodesCompact and Fully self-containedAlligator Clips are included for Quick and Easy ConnectionInstructions for getting the Operation Manual and Schematic will be provided after purchaseThis Radio is Fully Assembled and TestedEverything needed to listen to a fully functional crystal radio EXCEPT for the Antenna and Ground WireA minimum of a 50ft long outdoor Antenna Wire is recommended.The best configuration for a crystal radio antenna is to run the wire horizontally between two electrically insulated supports as high off the ground as possible . Search or the net to purchase a \"Crystal Radio Antenna\" Kit or to make your own..The reason you need a good length antenna is because the more antenna you have, the more power your set will receive, and the louder it will be.Antenna and Ground wire IS NOT Included


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