DO NOT ALLOW THIS AMPLIFIER TO TOUCH ANY METAL SURFACE-BATTERY MAY SHORT OUT OR PERMANENTLY DAMAGE THE ELECTRONICS
You can Use a Standard 8Ω (8 ohm) Mono 3.5mm plug Earphone with your Radio using this Amplifier
Includes a Quality Magnetic "transistor radio" Earphone and with 3.5mm mono mini plug.
The shape prevents the earphone from entering inside the ear canal.
Doesn't consume any power when the Earphone is UNPLUGGED
(You must Remove the Earphone from the Output of The Amplifier to Conserve the Battery Power)
DOES NOT WORK WITH PIEZO OR STEREO EARPHONES
Simply Plug in the Earphone into the Output connector of the Amplifier and Plug the Input side of the Amplifier Into your Crystal Radio and it is ready to go.
DOES NOT INCLUDE ANY AMPLIFIER SCHEMATICS OR INSTRUCTIONS
----CRAYSTAL RADIO----