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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.


The '''Tektronix Type O''' is a [[letter-series and 1-series plug-ins|letter-series plug-in]], designed by [[Hiro Moriyasu]], that contains two operational amplifiers and a vertical amplifier.
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.


The input and feedback networks of the op-amps can be configured from the front panel using knobs and/or user-supplied components.
The input and feedback networks of the operational amplifiers can be configured from the front panel switches and/or by way of user-supplied components plugged into the front panel banana jacks.
There are sockets on the front panel for banana plugs.
Tektronix made several pre-configured plug-in modules to plug directly into those jacks.
See the ''Accessories'' section below.
Note that one of the accessories is an empty box with mating banana plugs for a user-designed circuit.


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


{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Bandwidth   | DC to 25 MHz (Vertical amplifier<sup>1</sup>) }}
{{Spec | Bandwidth     | DC to 25 MHz (Vertical amplifier<sup>1</sup>) }}
{{Spec | Rise time   | 14 ns (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 | Deflection   | 50 mV/div to 10 V/div, 1–2–5, and variable (Vertical amplifier) }}
{{Spec | Input       | 1 MΩ // 47 pF (Vertical amplifier) }}
{{Spec | Input         | 1 MΩ // 47 pF (Vertical amplifier) }}
{{Spec | Opamp GBW    | 15 MHz }}
{{Spec | Op-Amp GBW    | 15 MHz }}
{{Spec | Opamp gain  | 2500 }}
{{Spec | Op-Amp gain  | 2500 }}
{{Spec | Opamp output | ±50 V, ±5 mA; output impedance 30 Ω @ 1 MHz }}
{{Spec | Op-Amp 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 | Op-Amp 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 }}
{{Spec | Internal Z   | input and feedback can be selected from 10 kΩ, 100 kΩ, 200 kΩ, 500 kΩ, 1 MΩ<br>or 10 pF to 1 μF in decade steps }}
{{EndSpecs}}
{{EndSpecs}}
''Note 1: In 540- and 580-series scopes and 555''
''Note 1: In 540- and 580-series scopes and 555''
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===Accessories===
===Accessories===
{{2ColBegin}}
{{2ColBegin}}
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