- #Dumont cathode ray oscillograph full
- #Dumont cathode ray oscillograph portable
- #Dumont cathode ray oscillograph series
LeCroy built the first real-time digital oscilloscope (WD 2000). Hiro Moriyasu (Tektronix) invents the digital oscilloscope. Hewlett-Packard (HP) introduces the HP 1200A an all solid-state oscilloscope with 500 kHz bandwidth. Tektronix lauchned the completely redesigned Serie 7000 (e.g.
#Dumont cathode ray oscillograph series
Hewlett-Packard (HP) introduces the Series 180, a complete family of oscilloscopes with a choice of mainframes, display sizes, plug-ins and accessories.
#Dumont cathode ray oscillograph portable
Tektronix introduces the Series 400 of portable oscilloscopes and the Model 647 a fully transistorized und ruggedized military version of the Model 547. Tektronix introduces the Model 564 the first storage oscilloscope and the high performance Model 547. Hewlett-Packard (HP) increased with the HP 185B the bandwith to 1000 MHz. Tektronix introduced Model 321, the first portable oscilloscope (6MHz, one channel, line and battery operation) First product was launched in 1960, the HP 185A with a bandwidth of 500 MHz. Hewlett-Packard (HP) invents the sampling technology. Hewlett-Packard (HP) enters the European market with sales and support offices in Germany and Switzerland and a factory in Germany. First product is a 5 MHz one channel oscilloscope. Tektronix introduces time-delayed trigger. Hewlett-Packard (HP) presents its first oscilloscope, Tektronix introduces the Model 545 with 24 MHz bandwith, 2 channels and a modular plug-in concept. Tektronix introduces the Model 535 which includes an own developed and produced CRT. Tektronix introduces its first time base triggered oscilloscope (Model 511) featuring automatic triggering, calibrated readings and high accuracy.ĭuMont launches 248 featuring 5 MHz bandwidth and 5 inch CRT. Tektronix was founded by Howard Vollum and Jack Murdock.
In the 1940s DuMont was the leader in the oscilloscpe market.Īllen DuMont invents frequency trigger and sweep, Model 224-A features 3 inch CRT, one channel and 2 MHz bandwidth. Hewlett-Packard was founded by Bill Hewlett and Dave Packard near Palo Alto.įirst dual beam oscilloscope developed by A.C.Cossor in UK.ĭuMont introduces the DuMont 164 general purpose Oscillograph. A few years later GR dropped the production of oscilloscopes. Some years later the company developed the Type 770-A which was never sold. General Radio Company (GenRad) introduces the first commercial one box cathode-ray oscilloscope (Type 687-A). Rohde & Schwarz was founded by Lothar Rohde and Hermann Schwarz in Munich, Germany.
General Radio Company (later renamed to GenRad) develops one of the first oscilloscopes (Electron Oscillograph Type 535-A it was in two parts: tube and power supply).Ī.C.Cossor Ltd. Karl Ferdinand Braun built the first cathode ray tube (CRT) and the first CRT based oscilloscope for physical experiments.įirst cathode ray tubes (CRT) used for measurements.
Below we listed some important oscilloscope milestones. Today the main players are Keysight, Tektronix and Teledyne LeCroy. Later Cossor and later Solartron dominated the market. In the beginning the most important manufacturers have been General Radio, DuMont, General Electric and Radio Corporation of America. Up to now this instrument encountered many innovations. Moreover, these measurements may be made in a minimum of time, qulifying the Type 304-A as a quantitative as well as a qualitative instrument.Oscilloscopes have been invented in the 1920s. Unlike electro-mechanical devices, the Type 304-A is not restricted to rms or peak-to-peak readings of voltage, as any amplitude portion of the input signal may be measured with the instrument.
#Dumont cathode ray oscillograph full
"To obtain the utmost from the Type 304-A, full advantage should be taken of the novel amplitude calibrating system of the instrument which permits signal amplitude measurements in volts directly from the screen. The high gain assures that the Type 304-A can be used directly with most transducers, while d-c amplification provides that the lowest frequency portions of signal will be faithfully reproduced." Function Used to provide accurate time and amplitude of measurements of voltage signals over a wide range of frequencies.Īccording to the instruction manual, "The Du Mont Type 304-A is a general-purpose cathode-ray oscillograph that enables rapid, accurate amplitude measurements of any portion of a 0-to 1000-volt signal, from d-c to over 50,000 cps.
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