DescriptionSmall spark gap transmitter.jpg English: Photo of a small spark-gap transmitter, an early type of radio transmitter used during the wireless...
121 67 700 450 Chokes to prevent radio-frequency current from tuned circuit from passing through transformer English Rotary spark gap radio transmitter...
1141 557 Dry cell battery to power the sounder 352 155 116 80 1141 557 Spark gap between metal balls attached to wire dipole antenna 141 178 70 249 1141...
1243 1377 905 461 4440 3065 English: Spark gap for the transmitter 2248 1477 932 511 4440 3065 English: Transmitter coil to produce high voltage pulses...
DescriptionSpark gap transmitter.jpg English: Antique spark gap radio transmitter in American Museum of Radio & Electricity in Bellingham, Washington,...
Heroes of the telegraph - Charles Wheatstone.jpg...
receiver 902 364 422 196 1600 1067 Induction coil provides power to transmitter 962 565 264 96 1600 1067 Telegraph keys for transmitting messages 1272...
https://www.flickr.com/photos/internetarchivebookimages/14595756568/ operator: Flickr URL: https://live.staticflickr.com/5583/14595756568_a08f43b406_o.jpg...
equipment. On the right is the spark transmitter, consisting of an induction coil, Leyden jar capacitors behind it, spark gap, and an oscillation transformer...
equipment. On the right is the spark transmitter, consisting of an induction coil, Leyden jar capacitors behind it, spark gap, and an oscillation transformer...
