Crystal Radio Set with Germanium Diode

 

Code Number: 5N10.67

Demo Title: Crystal Radio Set

Condition: Excellent

Principle: Electromagnetic Radiation

Area of Study: Electricity & Magnetism

Equipment: 

Crystal Radio Set with Germanium Diode, crystal radio set with Galena Crystal, and cats whisker.

Procedure:

Stretch out 50 to 100 ft. of antenna and ground the crystal radio unit to a copper pipe or some other good ground.  Listen with the ear phones and tune to the nearest AM radio station.

References:

  • William H. Baird, "Article About Coherer Applauded", TPT, Vol. 60, #1, Jan. 2022, p. 5.
  • Christopher Chiaverina, "Demonstrating the Beginnings of Radio Communications", TPT, Vol. 59, #8, Nov. 2021, p. 664.
  • William DeBuvitz, "More Crystal Set Memories", TPT, Vol. 52, # 5, May 2014, p. 260.
  • Ronald E. Jodoin, "A Mirco-oversight", TPT, Vol. 52, # 5, May 2014, p. 260.
  • Thomas B. Greenslade Jr., "The Crystal Set, TPT, Vol. 52, # 4, April 2014, p. 210.
  • Thomas B. Greenslade, "Crystal Set (Photo)", AJP, Vol. 79, # 9, Sep. 2011, p. 931.
  • Thomas B. Greenslade, Jr., "Crystal Set Tuner (Photo)", AJP, Vol. 74, # 11, Nov. 2006, p. 1039.
  • Thomas B. Greenslade, Jr., "Crystal Set Tuner (Photo)", AJP, Vol. 73, # 4, April 2005, p. 307.
  • Cy Tymony, "Bonus Application", Sneaky Uses for Everyday Things, p. 65.
  • A. D. Bulman, "Simple Radio Receivers", Model-Making for Physics, p. 165.
  • Simon Quellen Field, "Radios", Gonzo Gizmos, p. 85 - 115.
  • Simon Quellen Field, "Building a Three-Penny Radio", Gonzo Gizmos, p. 122.
  • W. Bolton, A Simple Radio Receiver", Book 4 - Electricity, Physics Experiments and Projects, 1968, p. 87-88.