130: Difference between revisions
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[[File:130 front.jpg|thumb|350px|right]] | [[File:130 front.jpg|thumb|350px|right]] | ||
The '''Tektronix Type 130''' is a self-contained instrument that measures inductance and capacitance. | The '''Tektronix Type 130''' is a self-contained instrument that measures inductance and capacitance. | ||
The 130 makes an LC oscillator using the device under test | |||
and a capacitor internal to the 130. | and a capacitor or inductor internal to the 130. That oscillator's frequency is | ||
measured by mixing it down using a fixed reference frequency, generating a pulse at each zero-crossing, and | measured by mixing it down using a fixed reference frequency, generating a pulse at each zero-crossing, and | ||
integrating (low-pass filtering) the pulse train. This produces a voltage that is proportional to the | integrating (low-pass filtering) the pulse train. This produces a voltage that is proportional to the | ||
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==Links== | ==Links== | ||
* Q+A: Type 130 L-C Meter and S-30 Delta Standards. Service Scope No. 18, Feb 1963 | * Q+A: Type 130 L-C Meter and S-30 Delta Standards. [[Media:Service Scope 18 Feb 1963.pdf | Service Scope No. 18, Feb 1963]]. | ||
==Pictures== | |||
<gallery> | <gallery> | ||
File:Tek 130 early.jpg|Early (Brown Era) Type 130 | File:Tek 130 early.jpg|Early (Brown Era) Type 130 | ||