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The Tektronix 107 is a squarewave generator.
{{Instrument Sidebar
It was intended to be used for calibration of oscilloscopes. 
|manufacturer=Tektronix
It is designed to provide a clean waveform with fast edges and flat tops.
|model=107
The signal path starts with an astable
|class=Pulse generator
multivibrator composed of both halves of a [[6BQ7A]] dual triode tube. 
|series=
The multivibrator circuit is cathode coupled to a pulse shaping circuit,
|summary=square-wave generator  
and then to an output stage made from a single [[6AU6]] tube with a 50-ohm plate load,
|image=Tek_107_front1.jpg
providing a controlled 50-ohm output impedance.
|caption=Tek 107 front
The 50-ohm plate load keeps the voltage gain of output stage low, and the bandwidth high.
|introduced=1958
|discontinued=(?)
|designers=
|manuals=
* [[Media:IM-107-1.pdf|Tektronix 107 Manual]]
* [[Media:070-050.pdf|Tektronix 107 Manual]] (same as IM-107-1?)
* [https://w140.com/tek_fcp/tek_type_107_field_cal_proc.pdf Tektronix 107 Factory Calibration Procedure]
}}
The '''Tektronix 107 ''' is a squarewave generator [[introduced in 1958]].


When loaded with 50 ohms, the output is a rectangular waveform with:
It is designed to provide a clean waveform with fast edges and flat tops for the calibration of oscilloscopes. 


* less than 3ns risetime (fixed)
{{BeginSpecs}}
* 400kHz to 1MHz repetition rate (uncalibrated)
{{Spec | Output          | rectangular waveform, 100−500 mV<sub>p-p</sub> (variable) into 50 Ω }}
* 100mV to 500mV peak-to-peak amplitude (variable)
{{Spec | Rise time      | less than 3 ns (fixed) when terminated into 50 Ω}}
{{Spec | Repetition rate | 400 kHz to 1 MHz (variable, uncalibrated) }}
{{Spec | Weight          | 5.9 kg (13 pounds) }}
{{Spec | Power          | 100 W }}
{{EndSpecs}}


The 107 weighs 13 pounds and uses 100 watts.
==Internals==
The signal path starts with an astable multivibrator composed of both halves of a
[[6BQ7A]] dual triode tube.  The multivibrator circuit is cathode coupled to a pulse
shaping circuit, and then to an output stage made from a single [[6AU6]] tube with a
50 Ω plate load, providing a controlled 50 Ω output impedance. 
The 50 Ω plate load keeps the voltage gain of output stage low, and the bandwidth high.


* [http://w140.com/tek_107_clean.pdf Tektronix 107 Manual (PDF)]
==Pictures==


<gallery>
<gallery>
Image:Tek 107.jpg
Tek 107 front.jpg
Image:Tek 107 schematic.png
Tek 107.jpg
Image:Tek 107 left.jpg
Tek 107 schematic.png
Image:Tek 107 right.jpg
Tek 107 left.jpg
Image:Tek 107 output resistors.jpg|Output, C94, R94, and R95
Tek 107 right.jpg
Image:Tek 107 rear.jpg
Tek 107 output resistors.jpg|Output, C94, R94, and R95
Tek 107 front1.jpg
Tek 107 front2.jpg
Tek 107 rear.jpg
Tek 107 left internal.jpg
Tek 107 right internal.jpg
Tek 107 left external.jpg|left external
Tek 107 right external.jpg|right external
Tek 107 on.jpg|Power on
</gallery>
</gallery>
==Components==
{{Parts|107}}
[[Category:Pulse generators]]

Latest revision as of 06:55, 6 December 2023

Tektronix 107
square-wave generator
Tek 107 front

Produced from 1958 to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 107 is a squarewave generator introduced in 1958.

It is designed to provide a clean waveform with fast edges and flat tops for the calibration of oscilloscopes.

Key Specifications

Output rectangular waveform, 100−500 mVp-p (variable) into 50 Ω
Rise time less than 3 ns (fixed) when terminated into 50 Ω
Repetition rate 400 kHz to 1 MHz (variable, uncalibrated)
Weight 5.9 kg (13 pounds)
Power 100 W

Internals

The signal path starts with an astable multivibrator composed of both halves of a 6BQ7A dual triode tube. The multivibrator circuit is cathode coupled to a pulse shaping circuit, and then to an output stage made from a single 6AU6 tube with a 50 Ω plate load, providing a controlled 50 Ω output impedance. The 50 Ω plate load keeps the voltage gain of output stage low, and the bandwidth high.

Pictures

  • Output, C94, R94, and R95

    Output, C94, R94, and R95

  • left external

    left external

  • right external

    right external

  • Power on

    Power on

Components

Some Parts Used in the 107

Part Part Number(s) Class Description Used in
6AU6 154-0022-00 • 157-0073-00 • 157-0059-00 • 154-0284-00 Vacuum Tube (Pentode) RF pentode 107 • 160 • 181 • 190 • 60 • 2A60 • 72 • 3A72 • 3C66 • 310 • 310A • 316 • 317 • 360 • 502 • 502A • 506 • 511 • 511A • 512 • 513 • 516 • 517 • 517A • 524 • 526 • 529 • RM529 • 531 • 531A • 535 • 536 • 545 • 545A • 546 • 547 • 549 • 555 • 561 • 561A • 561S • 564 • 565 • 567 • 570 • 575 • 581 • 581A • 585 • 585A • 80 • C • CA • Q
6BQ7A 154-028 • 154-0028-00 • 157-0022-00 • 157-0003-00 Vacuum Tube (Dual Triode) dual triode 107 • 163 • 181 • 310 • 315 • 316 • 360 • 524 • 531 • 532 • 535 • 536 • 541 • 545 • 570 • T
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