Rare Marconi Menu Signed from Waldorf Astoria
Quenched Spark Gap - Wireless Gap
Radicon Bus - Powered by Tesla / Marconi wireless concepts.
Similar control as Tesla's remote control boat! Endless thanks to Frank for this!
Chas A. Branston Radio Inductance Coils
High Frequency Variometer Coils for Wireless Experiments, Radio, Diathermy, etc.
Poulsen / Duddell Singing Arc Powered Tesla Coil - Initial Experiments
Wireless Transmission Of Electrical Energy to Light Incandescent Lamp
Ignition Coils
NTM Telegraphs
Feature Exhibition: Quenched Spark Gaps
Marconi Wireless Telegraph Gallery
High Frequency Alternators Gallery
Quenched Gap Apparatus Gallery
Poulsen Arc Gallery
Further Reading:
Building a Trans-Atlantic Receiving Set / Loose Coupler
How to make a Mercury Dip Interrupter
High Frequency Alternator - Frank W. Harth
Inductances For Radio Laboratory Work - W. B. Sleeper
Spark Gaps Running In Liquids
Plans to build a Quenched Spark Gap - Chas Ballantine - Electrical Experimenter March 1917
