High Gain Crystal Radio Audio Signal Amplifier with Noise Filter
For Mono Non-Piezo Magnetic 8Ω (8ohm) Earphone or Mono Headset
This Model Has Volume Control With Knurled Finger Tuning Knob
(Audio Volume Can be adjusted From Whisper Quiet to Loud by Turning the Knurled Blue Knob)
Turn the Knurled Blue Knob Clockwise to Increase volume
Power ON/OFF Switch and LED Indicator
Ultra Compact Small Size (1.1 Inch Wide and 2.1 Inch Long)
Includes Mono Earphone with 3.5mm Male Plug
Includes a 6" 3.5mm Double End Input Cable
Uses a Low Cost 4LR44 Battery
Battery is Included
(Use the Handy Power switch to turn off the Radio to conserve Battery Power when not in use)
DOES NOT WORK WITH PIEZO EARPHONES
DOES NOT WORK WITH STEREO EARPHONES
DOES NOT INCLUDE ANY SCHEMATICS OR INSTRUCTIONS
Allows you to use Non-Piezo 8Ω (8ohm) Magnetic Mono Earphone or Headset with your Crystal Radio
For Crystal Radio use:
1) Connect the Crystal Radio Audio Output using the Included Cable to the Input Jack of the Amplifier
2) Plug the Earphone into the Output Jack of the Amplifier
3) 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