Difference between revisions of "514"

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Image:Tek 514d-vert schem2.png
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File:Tek 514d front.jpg|Front
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File:Tek 514d dist amp.jpg|Distributed vertical amp
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File:Tek 514d delay trimmers.jpg|Delay line trimmer caps
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File:Tek 514d bottom.jpg|Bottom view
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Image:Tek 514d-vert schem2.png|Vertical amp schematic
 
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Revision as of 12:19, 23 June 2012

The Tektronix 514 is a monolithic general-purpose oscilloscope introduced in 1949 or 1950. It was designed by Tektronix engineers Bob Davis and Dick Rhiger. Using a three-section distributed distributed amplifier, it provides frequency response from DC to 10MHz. Prior to the 514, customers had to choose between an instrument with 10MHz bandwidth (the 511) or an instrument with DC response (the 512). The 514 provides DC response and 10MHz bandwidth. It weighs 60 pounds and consumes 360 watts. The 514 uses a 5CPA CRT with a total accelerating voltage of 3000 volts. The deflection sensitivity of the CRT is approximately 27V/cm vertical and 32V/cm horizontal.

The power supply is regulated based on a -140V reference produced by a OD3 gas regulator tube.

A 514D model exists, which has a 24-section 250ns lumped L-C delay line. There is also a 514AD. How does the 514AD differ from the 514D?

It has no thermal cutoff.