“I make things, mostly technological, but don’t hold me to that, consistency is not a human virtue. Electronics and software, cast iron and plastics, microcontrollers in vintage automobiles, faux historical machinery that could (not) have been; finely crafted, rigorously rugged, reliable, most often.”
Tom Jennings – World Power Systems
The Model 01a (aka M01a) is a 3″ x 5.5″ self-contained controller board designed for embedded applications. It’s based around Microchip Inc’s in-circuit-programmable 14-bit PICs, and contains I/O expansion, a power supply and various goodies that I found useful in five years of using my previous controller board design.
WPS Model 01a Control Engine
The M01 board contains enough support hardware to pull off a lot of functionality. Before I get to handling common interface problems here’s a function-by-function description of the hardware. There’s some subtlety to some of the design that’s worth paying attention to.
Index of www.wps.com, by subject
Technical reference data; obsolete, obscure, hard to find, and sometimes just plain old; mostly things made or written by others.
Yes, there were electric lights powered by central stations before Edison’s! Carbon arc lamps saw extensive use throughout the USA and the world from the late 1870s on. – Charles Brush
Museum Of Electricity – Charles Brush
The General Electric Company was formed in 1892. It was the result of a meger between the Edison General electric Company and the Thomson-Houston Company, which themselves incorporated several other companies.
Electricity, technology, and lots of arcs and sparks!
Museum Of Electricity contains Vintage Electrical and Historical images and description. They include the Edison Lamp, Tesla Coils, Lightning and Atmospheric Electricity and the …..
Amazing Jacob’s Ladder
So how do they work? First two conductive metal rods are positioned in a rough “V” shape with a slight space between them at the base. A sufficient voltage differential is provided from a high voltage transformer to breakdown the air in the gap between the rods.
Nikola Tesla invented the Tesla Coil in the late 1800s. Here you will find some information and technologies related to that. HV is not safe and this is not a Hobby for Youngsters. Read to understand the dangers of High Voltage and Marvel at the phenomena.
The pulse-energy nature of the Tesla coil has long been a tough environment for the discharge capacitor. Coilers have built capacitors with glass bottles and salt-water, sheets of glass and aluminum foil, and more recently, polyethylene sheets, aluminum flashing, and mineral oil
Magnifier Tesla Coil
In a Classic Tesla coil, the magnetic coupling between L1 and L2 is around 20% (0.2). Tesla realized this caused a lot of loss, and he abandoned the design in favor of a 3 coil system with a very high coupling (60%).
Tesla Coils from Terry Blake
D.C. Cox’s Cheesehead Teslathon, Ed Wingate’s RATCB Teslathon, The Geek Group’s Halloween Teslathon and many more.
“At the age of 10 we moved to Copenhagen for about 2 years. I had some friends there who knew that I liked old radios so regularly someone brought me one. (See my picture at the main page) Among them was the Bang & Olufsen – Grand Prix 48 K (photo). I liked this radio so much that I wanted to make it work again. There was not much wrong so I got it working. Later when we were back in Eindhoven, I made so many …….”
Franks Electron tube Pages
Frank Philipse – Waalre, the Netherlands.
- Tube Number Systems
- American Substitutes for Foreign Types
- Foreign Substitutes for American Types
The tube data resides on several mirror sites in several countries and they are exactly equal, except for the Poland site which additionally has been equipped with a tube search.
More about Frank’s Experiments
“Back in Eindhoven, there where the 60’s. Radio Luxembourg on my B&O etc. I got interest in guitars and amplifiers. I built several Amps. My first amp was something with the EF11 and the EL3. I also built a copy of the Philips EL6431 Amplifier. (That’s where the output transformer of my B&O radio went) In Eindhoven there was a repair shop called ‘De Radiodokter’. He had some old TV chassis in the display for 5 guilders each. When I had saved enough money, I bought some. Then when I was about 16 I made my first really working TV from these parts.”