Vacuum-Tubes

By:
On:
In: History Vintage, Reference
Tagged: ,

“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

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.

By:
On:
In: History Vintage
Tagged:

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.

Museum Of Electricity - Charles Brush

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.

By:
On:
In: History Vintage
Tagged: ,

“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

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.”

By:
On:
In: Hobby Lab
Tagged: ,

Ronald Dekker’s Nixie Tube Projects and Software. He has many interesting projects like “Mixed-Signal” LED clock, The µTracer, a miniature tube curve tracer. A Tiny 80(C)31 Basic Board.

Electronic Projects of Ronald

(Image Below Colored and Enhanced by me- delabs)

Ronald Dekker's Projects

NIXIE II A Talking NIXIE Alarm Clock! This Nixie Alarm clock will wake you up with a personal wake-up message or sound. A “wav” file stored in EPROM is played using only a few counters and a DA converter.

The µSCOPE – A poormans OscilloScope

“These days this obviously can be done much simpler. The present generation of micro controllers is so powerful that such a videoscope concept can be realized almost completely in software. Recently I obtained a sample of the 12f675. On examination of the datasheet of this small 8 pins micro controller from Microchip, it appeared that the small package contained all the components of a miniature videoscope. In short the µSCOPE project was born, with as main objective the challenge of implementing such a relatively complex task in this small micro controller. The result summarized on this web page is a fully functional (memory)scope that samples the analogue input signal and subsequently displays it on a normal TV”

Dmitrij Kazakov’s verion of the µSCOPE