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[[File:Tek_130-Models.jpeg| LC 130, SN 101-5000 and 5001-Up |thumb|350px|right]] | [[File:Tek_130-Models.jpeg| LC 130, SN 101-5000 and 5001-Up |thumb|350px|right]] | ||
The '''Tektronix Type 130''' is a self-contained instrument | The '''Tektronix Type 130''' is a self-contained instrument, designed by [[Cliff Moulton]] and [[introduced in 1959]], that measures inductance and capacitance. | ||
There are at least two versions of Type 130. | There are at least two versions of Type 130. | ||
Early units (SN 101-5000) have a narrow boxy case that slides off the chassis, brown paint, backlit meter, and are marked "TYPE 130 L,C METER". | Early units (SN 101-5000) have a narrow boxy case that slides off the chassis, brown paint, backlit meter, and are marked "TYPE 130 L,C METER". | ||
Later units (SN 5001-Up)have a wider rounded case with side panels that pop off, blue paint, non-backlit meter, and are marked "TYPE 130 L-C METER". | Later units (SN 5001-Up) have a wider, rounded case with side panels that pop off, blue paint, non-backlit meter, and are marked "TYPE 130 L-C METER". | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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==Manuals== | ==Manuals== | ||
* [ | * [[Media:070-231.pdf | Tektronix 130 Manual 070-231]] (PDF) / [https://vintagetek.org/wp-content/uploads/2020/09/Alan-Hampel-Tektronix-130-Instruction-Manual.pdf 070-231 Manual Restored by Alan Hampel] (PDF @ vintagetek.org, includes redrawn schematics) | ||
* [ | * [[Media:070-0231-01.pdf | Tektronix 130 Manual 070-231-01]] (PDF, covers both cabinet types) | ||
* [http://w140.com/tek_fcp/tek_type_130_factory_cal_proc.pdf Tektronix 130 Factory Calibration Procedure (PDF)] | * [http://w140.com/tek_fcp/tek_type_130_factory_cal_proc.pdf Tektronix 130 Factory Calibration Procedure (PDF)] | ||
==Links== | ==Links== | ||
* 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]]. | * 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]]. | ||
* Silicon Chip, June 2020 - Vintage Workbench - Tektronix T-130 LC Meter: [https://vintagetek.org/wp-content/uploads/2020/09/Silicon-Chip-June-2020-Vintage-Workbench-Tektronix-T-130-LC-Meter-part-one.pdf Part 1] / [https://vintagetek.org/wp-content/uploads/2020/09/Silicon-Chip-July-2020-Vintage-Workbench-Tektronix-T-130-LC-Meter-part-two.pdf Part 2] / [https://vintagetek.org/wp-content/uploads/2020/09/Silicon-Chip-August-2020-Vintage-Workbench-Tektronix-T-130-LC-Meter-part-three.pdf Part 3] (PDFs @ vintagetek.org) | |||
==Internals== | |||
The 130 contains an LC oscillator with a tank circuit formed by the device under test and a capacitor or inductor internal to the 130. | |||
The oscillator's frequency is 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 frequency difference between the LC oscillator and the reference oscillator. | |||
This voltage is displayed on a d'Arsonval (moving coil) meter on the front panel of the 130. | |||
==Pictures== | ==Pictures== | ||