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Li'l TC

2
Average: 2 (1 vote)
1965
Authors: 
Page numbers: 
99-101
A potent “little brother” to “Big TC,” this Tesla coil version is inexpensive, easy to build, and it can put out 30,000 volts! If you have read the preceding article on “Big TC,” you will have learned that a Tesla coil is simply a radio-frequency step-up transformer carried to extreme limits. While a coil that can generate 150,000-200,000 volts is exciting and very dramatic, many of the same visual effects can be demonstrated on a smaller scale with “Li'l TC.” In fact, “Li'l TC” is much safer, easier to build, and less expensive. The only item many experimenters will have to buy in order to... continue reading »

Big TC

5
Average: 5 (1 vote)
1965
Authors: 
Category: 
Page numbers: 
93-98
TESLA COILS have fascinated experimenters ever since the early 1900's when Nikola Tesla first experimented with giant coils that produced lightning-like discharges which would span his laboratory — the work of millions of volts of electricity. The Tesla coil described here is smaller than some of Tesla's designs, but it's capable of putting out almost a quarter of a million volts!

Build a Solid State Tesla Coil

2
Average: 2 (1 vote)
November, 1994
Authors: 
Category: 
Page numbers: 
61-62, 68
Build a solid-state version of Tesla's famous coil. It is easier to build and safer to operate. Nikola Tesla's coil is alive and well today, living in school labs and hobbyist's workshops as a tool for learning and experimentation. The classical air-core transformer with a spark gap and capacitor produces a high voltage at high frequencies. However, new designs of that concept based on solid-state components and improved transformers make the construction of a Tesla coil easier and safer. When Tesla devised his coil, the spark gap oscillator was the only practical method for generating the... continue reading »

The Tesla High Frequency Transformer

5
Average: 5 (1 vote)
November, 1987
Authors: 
Category: 
Page numbers: 
12-13, 31
A unique demonstration of electrical resonance for the experienced hobbyist. The spark-excited Tesla high-frequency transformer provides a display that leaves most first-time observers wide-eyed and speechless. Although it won't find too much use in the hamshack, it provides such an awesome demonstration of electrical resonance that one would make an ideal ham club project. The working of a transformer offers a unique visual aid for teaching a new ham candidate resonant circuit theory as he observes a crackling eighteen-inch spark discharge itself into the air. Just to refresh your memory, a... continue reading »

The Square Tesla Coil

2
Average: 2 (1 vote)
August, 1989
Authors: 
Category: 
Build this unusual version of Nikola Tesla's most famous experiment! Nikola Tesla, considered by some to be the greatest inventor of the electrical age, is today best remembered for his fascinating power-transmission experiments, using his famous Tesla Coil. In his original experiment, he was able to transmit electrical energy without wires to light incandescent lamps located over 25 miles way. Today, most similar circuits — like the Tesla Coil described in this article — are used for educational and experimental purposes. Unlike many of the modern versions, our circuit feeds AC to a... continue reading »

The Square Tesla Coil

2
Average: 2 (1 vote)
August, 1989
Authors: 
Category: 
Build this unusual version of Nikola Tesla's most famous experiment! Nikola Tesla, considered by some to be the greatest inventor of the electrical age, is today best remembered for his fascinating power-transmission experiments, using his famous Tesla Coil. In his original experiment, he was able to transmit electrical energy without wires to light incandescent lamps located over 25 miles way. Today, most similar circuits — like the Tesla Coil described in this article — are used for educational and experimental purposes. Unlike many of the modern versions, our circuit feeds AC to a... continue reading »

The Square Tesla Coil

2
Average: 2 (1 vote)
August, 1989
Authors: 
Category: 
Build this unusual version of Nikola Tesla's most famous experiment! Nikola Tesla, considered by some to be the greatest inventor of the electrical age, is today best remembered for his fascinating power-transmission experiments, using his famous Tesla Coil. In his original experiment, he was able to transmit electrical energy without wires to light incandescent lamps located over 25 miles way. Today, most similar circuits — like the Tesla Coil described in this article — are used for educational and experimental purposes. Unlike many of the modern versions, our circuit feeds AC to a... continue reading »

The Square Tesla Coil

2
Average: 2 (1 vote)
August, 1989
Authors: 
Category: 
Build this unusual version of Nikola Tesla's most famous experiment! Nikola Tesla, considered by some to be the greatest inventor of the electrical age, is today best remembered for his fascinating power-transmission experiments, using his famous Tesla Coil. In his original experiment, he was able to transmit electrical energy without wires to light incandescent lamps located over 25 miles way. Today, most similar circuits — like the Tesla Coil described in this article — are used for educational and experimental purposes. Unlike many of the modern versions, our circuit feeds AC to a... continue reading »