Friday, May 04, 2018

Digital Logic Probe Circuits

Digital Test and Measurement Starts with Logic Probe - Any point in a Digital Circuit can be High, Low, Float means TriState. The High Low in a 5V CMOS circuit is just 0V and 5V. In TTL and ECL it is much different.

The Test Point could also be Pulsing or have analog values and waveforms, as in Mixed Signal Chips. Here are Logic Probe Circuits you can Build in your own Home Lab.

Digital Logic Probe Circuits

Digital Logic Probe Circuits

Multi-Instrument Digital Assistant – PIC16F84A

Multi-Instrument Digital Assistant - PIC16F84A - "It contains four instruments in one unit: logic probe, single channel logic state analyzer, frequency counter and serial code receiver."

Small Electronic Testing Tools

Then first thing in Electrical testing is the Continuity Tester, Then we use the Neon Mains Screwdriver, Then we need an Voltmeter or an Ammeter. In electronics we need a OhmMeter and LCR meter too.

Thursday, May 03, 2018

General Electric Company - GE

In 1876, Thomas Alva Edison opened a new laboratory in Menlo Park, New Jersey. Out of the laboratory came arguably the most famous invention of all-a practical incandescent electric lamp. By 1890, Edison had organized his various businesses into the "Edison General Electric Company."

General Electric Company - GE

General Electric 40W light bulb.

General Electric 40W light bulb.

"Charles Proteus Steinmetz, already a distinguished industrial scientist, was hard at work as GE's chief consulting engineer. After years of persuasion, Steinmetz convinced the GE leadership that the company would need a research laboratory to maintain its edge in lighting and electricity and also finding new areas to grow." - Heritage of Research

Charles Proteus Steinmetz

Charles Proteus Steinmetz He made ground-breaking discoveries in the understanding of hysteresis that enabled engineers to better design electric motors for use in industry.

Wednesday, May 02, 2018

Grundig AG - Consumer Electronics

Grundig AG is a German manufacturer of consumer electronics for home entertainment. Max Grundig established the company in Nuremberg in 1945, shortly after World War II.

Grundig AG - Consumer Electronics

The history of the company began in 1930 with the establishment of a store named Fuerth, Grundig & Wurzer (RVF), which sold radios. After World War II Max Grundig recognized the need in Germany for radios and in 1947 produced a kit, while a factory and administration centre were under construction at Fürth.

Grundig Tonbandkoffer TK 42 - 1962

Grundig Tonbandkoffer TK 42 - 1962

Grundig History

"1952: On the 25th of December, the first television channel starts up in Germany. This means that television receivers also have to be produced. After intensive research, Grundig launches the FS 080 onto the market.

 In the same year the first portable tape recorder Reporter 500 L is created. Technical data: speed 19 cm/sec, frequency conversion 50 Hz to 10 kHz, built-in amplifier and speaker."

Grundig AG - Wikipedia 

Max Grundig recognized the need for radios in Germany, and in 1947 produced a kit, while a factory and administration centre were built at Fürth. In 1951, the first television sets were manufactured at the new facility. At the time Grundig was the largest radio manufacturer in Europe. Divisions in Nuremberg, Frankfurt and Karlsruhe were established.

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