Some Interesting Links
Timekeeping
The Official U.S. Time
A Walk Through Time
Early Telegraphy
Vom Urknall des Internet
(Sömmering, Wheatstone, Morse)
Die elektrische Telegraphie
(Sömmering, Ronalds, Cooke, Wheatstone, Morse)
von Sömmering's Telegraph
The First Telegraphs
(Aeneas)
Early Television
George du Maurier, Edison's Telephonoscope (1878)
Telecommunication of Graphical Information (Caselli)
"Seeing by electricity", Scientific American, June 5, 1880 (Carey)
Paul Nipkow, Elektrisches Teleskop
The World's Earliest Television Recordings - Restored!
(Baird)
The Farnsworth Chronicles
Part 15 Regulations
47 CFR Part 15
The text of the Part 15 Regulations.
UNDERSTANDING THE FCC REGULATIONS FOR LOW-POWER, NON-LICENSED TRANSMITTERS
Contains a table of allowed emissions by frequency.
Homemade Radios
Building a very simple AM voice transmitter.
AM band Transmitter
Micro Power AM Broadcast Transmitter
VEC-1290K AM Transmitter Kit
Deluxe Direct Conversion Receiver
Softrock-40
Early Homemade Computers
Electronics Illustrated, January, 1960.
Electronics Illustrated, November, 1966.
Popular Electronics, January 1975.
Additive Synthesis
Synth Secrets PART 14: AN INTRODUCTION TO ADDITIVE SYNTHESIS
The Telharmonium
Thaddeus Cahill's "Dynamophone/Telharmonium" (1897)
Thaddeus Cahill's Telharmonium
Music by Electricity (1906)
The Hammond Organ
MMD Archives: How the Hammond Electric Organ Works
Secrets of the Hammond Organ
Technical Information for Hammond Tone Wheel Organ
Schematic of the Hammond B3 Organ
Service Manual for the Hammond A-100 Organ
Hammond Drawbar Wave Simulation
Hammond-Leslie FAQ / Index