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112: Difference between revisions
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The '''Tektronix 112''' is a DC-coupled differential amplifier [[introduced in 1949]]. | The '''Tektronix 112''' is a DC-coupled differential amplifier [[introduced in 1949]]. | ||
The 112 is intended for use with the [[511]], [[512]], [[514]], and [[524]] oscilloscopes. | The 112 is intended for use with the [[511]], [[512]], [[514]], and [[524]] oscilloscopes. | ||
{{BeginSpecs}} | |||
{{Spec | Amplification | 0.5 to 5000 V/V }} | |||
{{Spec | Bandwidth | DC to 2 MHz @ gain < 166; DC to 1 MHz above }} | |||
{{Spec | Input impedance | 1 MΩ // 47 pF }} | |||
{{Spec | Output impedance | 8 kΩ }} | |||
{{EndSpecs}} | |||
==Internals== | |||
The amplifier's schematic and response are identical to that of a [[512|Tek 512]]. | The amplifier's schematic and response are identical to that of a [[512|Tek 512]]. | ||
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The 112 has a differential output intended for directly driving the vertical deflection plates of a CRT. | The 112 has a differential output intended for directly driving the vertical deflection plates of a CRT. | ||
The output terminals of the 112 are on the right side in the rear, so the 112 can sit to the left of an oscilloscope | The output terminals of the 112 are on the right side in the rear, so the 112 can sit to the left of an oscilloscope and short wires can connect the 112 to the oscilloscope's CRT. | ||
and short wires can connect the 112 to the oscilloscope's CRT. | |||
A two-position switch on the rear panel of the Type 112 controls the common-mode output voltage. | A two-position switch on the rear panel of the Type 112 controls the common-mode output voltage. | ||
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* [[121]] | * [[121]] | ||
== | ==Prices== | ||
* 1949: $495 (~ $6,300 in 2023 dollars) | |||
==Pictures== | |||
<gallery> | <gallery> | ||
tek_112_18.jpg | tek_112_18.jpg | ||
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</gallery> | </gallery> | ||
==Components== | |||
{{Parts|112}} | {{Parts|112}} | ||
[[Category:Differential amplifiers]] | [[Category:Differential amplifiers]] | ||