3D Printable Flat Spiral Coils
Method Of Symmetrical Co-Ordinates Applied To The Solution Of Polyphase Networks by Eric Dollard

Bell Telephone Outside Plant TD2 Microwave Antenae

Historic obsolete multiplex microwave communication system for Bell Telephone built by Western Electric. Carried television broadcasts, multi-channel long distance telephone message circuits, military autovon circuits. Transcontinental system repeater spacing 30 miles. Total system capacity 10,500 telephone channels.

 

 

Method Of Symmetrical Co-Ordinates Applied To The Solution Of Polyphase Networks by Eric Dollard
Orgone Energy Experiments Part 2 - Proof Of A Cosmic Life-Energy by James DeMeo

Bell Telephone Switching Systems and Related Carrier Facilities

This is the last operating Bell Telephone switching equipment of all generations up to the mid 1960’s.

Electromagnetic Induction And Its Propagation by Eric Dollard
Cosmic Ether Exists Part 2 - Implications To Modern Physics by James DeMeo