DescriptionSpark gap transmitter.jpg English: Antique spark gap radio transmitter in American Museum of Radio & Electricity in Bellingham, Washington,...
121 67 700 450 Chokes to prevent radio-frequency current from tuned circuit from passing through transformer English Rotary spark gap radio transmitter...
0/PDMCreative Commons Public Domain Mark 1.0falsefalse 71 143 99 52 429 286 Righi spark gap, consisting of 4 brass balls with outer ones connected to induction coil...
BY 4.0 Creative Commons Attribution 4.0 truetrue English Modern Spark Gap Transmitter German Knallfunkensender als Demonstrationsversuch in moderner Bauweise...
or "series" spark gap consisting of a stack of cylindrical electrodes in series with microscopic gaps between them. English Ship spark gap radiotelegraphy...
org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue English Spark Gap transmitter built with modern components for demonstrative purposes German Knallfunkensender...
362 206 51 16 637 453 Spark gap 322 233 130 52 637 453 Induction coil 196 375 187 73 637 453 Lead-acid automotive battery 127 293 88 41 637 453 Telegraph...
English A rotary spark radio transmitter from 1914...
