TITLE: Transformer Power Supply Issues:
I recently built the transformer power supply circuit from the Experiments section of the online book.
The issue I have is that when I have the switch in the off position I am reading ~250mV DC across the leads.
I suspected the switch as the source of the issue. However I can not find any leaks in the switch. It reads infinite resistance on my meter, but somehow I am showing a small voltage. If I unplug the circuit from the wall the voltage I show goes to zero as it should with the switch in the off position.
The switch is a rocker rated for up to 250V AC.
I made sure to test all leads in the power cord to check for leaks and found none.
Am I missing anything?
I have attached a diagram of my circuit.
I recently built the transformer power supply circuit from the Experiments section of the online book.
The issue I have is that when I have the switch in the off position I am reading ~250mV DC across the leads.
I suspected the switch as the source of the issue. However I can not find any leaks in the switch. It reads infinite resistance on my meter, but somehow I am showing a small voltage. If I unplug the circuit from the wall the voltage I show goes to zero as it should with the switch in the off position.
The switch is a rocker rated for up to 250V AC.
I made sure to test all leads in the power cord to check for leaks and found none.
Am I missing anything?
I have attached a diagram of my circuit.
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