TNP #41 - Stanford Research SR620 Universal Time Interval Counter Teardown, Repair & Experiments
Автор: The Signal Path
Загружено: 2023-11-17
Просмотров: 22076
In this episode Shahriar repairs an SRS SR620 frequency interval counter where the magic smoke has escaped! The instrument does not power on and the teardown reveals a burnt resistor. The circuit examination shows a voltage regular for the 5V output which has a short circuit the the chassis. A simple repair and resistor replacement brings the unit back to life.
The performance of the internal OCXO is measured against a Rubidium oscillator and the unit is frequency calibrated. The XY output mode of the unit as well as its ability to measure propagation delays are also shown.
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