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The '''Tektronix Type O''' is a [[letter-series and 1-series plug-ins|letter-series plug-in]] that contains two op-amps.
The '''Tektronix Type O''' is a [[letter-series and 1-series plug-ins|letter-series plug-in]], designed by [[Hiro Moriyasu]], that contains two op-amps and a vertical amplifier.
It was designed by [[Hiro Moriyasu]].
 
It was [[introduced in 1962|introduced in mid-1962]] and was available through 1973.
It was [[introduced in 1962|introduced in mid-1962]] and was available through 1973.


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There are sockets on the front panel for banana plugs.   
There are sockets on the front panel for banana plugs.   


Type O also has a regular signal input that does not involve the op-amps. 
A mode switch selects the display to be taken from either op-amp's output, or the vertical amplifier input.
A mode switch selects which op-amp's output will be displayed, or the regular signal input.


==Specifications==
{{BeginSpecs}}
Regular signal bandwidth is 25 MHz, maximum sensitivity is 50 mV/div, op-amp gain-bandwidth product is 15 MHz, and open-loop DC gain is 2500.
{{Spec | Bandwidth    | DC to 25 MHz (Vertical amplifier<sup>1</sup>) }}
{{Spec | Rise time    | 14 ns (Vertical amplifier <sup>1</sup>) }}
{{Spec | Deflection  | 50 mV/div to 10 V/div, 1–2–5, and variable (Vertical amplifier) }}
{{Spec | Input        | 1 MΩ // 47 pF (Vertical amplifier) }}
{{Spec | Opamp GBW    | 15 MHz }}
{{Spec | Opamp gain   | 2500 }}
{{Spec | Opamp output | ±50 V, ±5 mA; output impedance 30 Ω @ 1 MHz }}
{{Spec | Opamp noise  | typ. 0.5 mV<sub>p-p</sub> referred to the input }}
{{Spec | Internal Z  | input and feedback can be selected from 10 kΩ, 100 kΩ, 200 kΩ, 500 kΩ, 1 MΩ, or 10 pF to 1 μF in decade steps }}
{{EndSpecs}}
''Note 1: In 540- and 580-series scopes and 555''
<small>
===Accessories===
{{2ColBegin}}
* [[013-0049-01]] Standard Shielded Cover (two supplied with each plugin)
* [[013-0048-01]] Terminal Adapter Assembly (empty box for user chosen components)
* [[013-0081-00]] Compensating Adapter
* [[013-0068-00]] Gating Adapter
* [[013-0086-00]] Leakage Current Adapter
* [[013-0067-00]] Logarithmic Amplifier Adapter
* [[067-0507-00]] Grid Current Checker (calibration fixture)
{{2ColEnd}}
</small>


==Accessories==
==Prices==
:[[013-0049-01]] Standard Shielded Cover (two supplied with each plugin)
* $625 in 1971 ($4,700 in 2023 dollars)
:[[013-0048-01]] Terminal Adapter Assembly (empty box for user chosen components)
:[[013-0081-00]] Compensating Adapter
:[[013-0068-00]] Gating Adapter
:[[013-0086-00]] Leakage Current Adapter
:[[013-0067-00]] Logarithmic Amplifier Adapter


==Calibration Fixtures==
==Internals==
:[[067-0507-00]] Grid Current Checker
The opamps are implemented using two [[12AU6]] as a differential pair followed by two systems of a [[6DJ8]] as a bootstrapped cathode follower.


==Prices==
The vertical amplifier also starts with a 12AU6 differential pair, which is followed by a pair of [[2N1143]] 200 MHz transistors.
* $625 in 1971 ($4,200 in 2021 dollars)


==Pictures==
==Pictures==
<gallery>
<gallery>
Tek Type O front.jpg | Front view
Tek Type O front.jpg       | Front view
Type_o_front.jpg|Front view
Tek_Type_O_front_Peter.jpg | Front view
Type_o_top.jpg|Top view
Type_o_top.jpg             | Top view
Type_o_right.jpg|Right view
Type_o_right.jpg           | Right view
Type_o_left.jpg|Left view
Type_o_left.jpg           | Left view
Type-o.jpg
Type-o.jpg
Tek type o adp1.JPG
Tek type o adp1.JPG
Tek type o adp2.JPG
Tek type o adp2.JPG
Tek type o schem.png|Opamp Schematic
Tek type o preamp.png|Preamp Schematic
Tek o fr1.jpg
Tek o fr1.jpg
Tek o fr2.jpg
Tek o fr2.jpg
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</gallery>
</gallery>


'''Schematics'''
<gallery>
Tek type o schem.png|Opamp Schematic
Tek type o preamp.png|Preamp Schematic
</gallery>
==Components==
{{Parts|O}}
{{Parts|O}}


[[Category:500 series plugins]]
[[Category:500 series plugins]]

Revision as of 07:44, 28 November 2023

Tektronix Type O
Dual opamp plugin
Type O front view

Compatible with 500-series scopes

Produced from 1962 to 1974

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix Type O is a letter-series plug-in, designed by Hiro Moriyasu, that contains two op-amps and a vertical amplifier.

It was introduced in mid-1962 and was available through 1973.

The input and feedback networks of the op-amps can be configured from the front panel using knobs and/or user-supplied components. There are sockets on the front panel for banana plugs.

A mode switch selects the display to be taken from either op-amp's output, or the vertical amplifier input.

Key Specifications

Bandwidth DC to 25 MHz (Vertical amplifier1)
Rise time 14 ns (Vertical amplifier 1)
Deflection 50 mV/div to 10 V/div, 1–2–5, and variable (Vertical amplifier)
Input 1 MΩ // 47 pF (Vertical amplifier)
Opamp GBW 15 MHz
Opamp gain 2500
Opamp output ±50 V, ±5 mA; output impedance 30 Ω @ 1 MHz
Opamp noise typ. 0.5 mVp-p referred to the input
Internal Z input and feedback can be selected from 10 kΩ, 100 kΩ, 200 kΩ, 500 kΩ, 1 MΩ, or 10 pF to 1 μF in decade steps

Note 1: In 540- and 580-series scopes and 555

Accessories

Prices

  • $625 in 1971 ($4,700 in 2023 dollars)

Internals

The opamps are implemented using two 12AU6 as a differential pair followed by two systems of a 6DJ8 as a bootstrapped cathode follower.

The vertical amplifier also starts with a 12AU6 differential pair, which is followed by a pair of 2N1143 200 MHz transistors.

Pictures

  • Front view

    Front view

  • Front view

    Front view

  • Top view

    Top view

  • Right view

    Right view

  • Left view

    Left view

  • pre-production Type O

    pre-production Type O

Schematics

  • Opamp Schematic

    Opamp Schematic

  • Preamp Schematic

    Preamp Schematic

Components

Some Parts Used in the O

Part Part Number(s) Class Description Used in
12AU6 154-0040-00 Vacuum Tube (Pentode) RF pentode 81 • 112 • 1L10 • 1L20 • 1L60 • 3L10 • 512 • 556 • 575 • 545 • 547 • 549 • 581 • 585 • A • B • C • G • K • H • L • ML • M • N • O • R • S • Z
6DJ8 154-0187-00 • 154-0305-00 Vacuum Tube (Dual Triode) dual triode 132 • 161 • 310A • 316 • 317 • 502 • 502A • 503 • 504 • 506 • 515 • 516 • 519 • 526 • 529 • RM529 • 533 • 535 • 536 • 543 • 544 • 545 • 545A • 545B • 546 • 547 • 549 • 555 • 556 • 561A • 561S • 564 • 565 • 567 • 581 • 581A • 585 • 585A • 661 • 1A4 • 1S1 • 60 • 2A60 • 63 • 2A63 • 67 • 2B67 • 3A1 • 3A1S • 3A2 • 3A3 • 3A6 • 3A7 • 72 • 3A72 • 75 • 3A75 • 4S2 • 51 • 3B1 • 3B1S • 3B2 • 3B3 • 3B4 • 3M1 • 3S76 • 3T77 • 3T77A • 9A1 • 9A2 • 1121 • 80 • 81 • 82 • 86 • B • O • W • Z • Telequipment D56 • Telequipment S32A • Telequipment D52 • S-311 • Telequipment TD51 • Telequipment S52 • Telequipment S51 • Telequipment Type A • TU-4
8426 Vacuum Tube (Pentode) RF pentode O • 545A • 547 • 549 • 581A • 585A
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