Difference between revisions of "514"

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The '''Tektronix 514''' is a monolithic general-purpose oscilloscope introduced in 1949 or 1950.
 
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.
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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.   
 
Using a three-section distributed [[distributed amplifier]], it provides frequency response from DC to 10MHz.   
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The power supply is regulated based on a -140 V reference produced by a [[OD3]] gas regulator tube.
 
The power supply is regulated based on a -140 V reference produced by a [[OD3]] gas regulator tube.
The +225V supply uses three [[5V4G]] rectifier tubes in parallel.
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The +225 V supply uses three [[5V4G]] rectifier tubes in parallel.
  
 
A 514D model exists, which has a 24-section 250 ns lumped L-C [[delay line]].   
 
A 514D model exists, which has a 24-section 250 ns lumped L-C [[delay line]].   
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<gallery>
 
<gallery>
File:Tek 514d front.jpg|Front
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File:Tek 514d front.jpg         | Front
File:Tek 514d dist amp.jpg|Distributed vertical amp
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File:Tek 514d dist amp.jpg       |Distributed vertical amp
File:Tek 514d delay trimmers.jpg|Delay line trimmer caps  
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File:Tek 514d delay trimmers.jpg | Delay line trimmer caps  
File:Tek 514d bottom.jpg|Bottom view
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File:Tek 514d bottom.jpg         | Bottom view
Image:Tek 514d-vert schem2.png|Vertical amp schematic
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File:Tek 514d-vert schem2.png   | Vertical amp schematic
 
</gallery>
 
</gallery>
  
 
[[Category:Monolithic tube scopes]]
 
[[Category:Monolithic tube scopes]]

Revision as of 03:21, 13 May 2015

Tektronix 514
10 MHz Tube scope
Tektronix 514 front

Produced from 1949 to (?)

Manuals
Manuals – Specifications – Links – Pictures

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 10 MHz bandwidth (the 511) or an instrument with DC response (the 512).

The 514 provides DC response and 10 MHz bandwidth. It weighs 60 pounds (27 kg) and consumes 360 W. The 514 uses a 5CPA CRT with a total accelerating voltage of 3000 V. The deflection sensitivity of the CRT is approximately 27 V/cm vertical and 32 V/cm horizontal.

The power supply is regulated based on a -140 V reference produced by a OD3 gas regulator tube. The +225 V supply uses three 5V4G rectifier tubes in parallel.

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

It has no thermal cutoff.

Specifications

Pictures