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Bob Engelhardt Bob Engelhardt is offline
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Default HP 5385A freq counter repair

On 9/24/2016 11:18 PM, Phil Allison wrote:
... If the 5V rail goes out of tolerance, an SCR is triggered to ...
... the 5V rail would be full of HF switching noise which could trigger the SCR. ...


How would the monitoring circuit work, in general terms?