Big Dim Bulb Tester with Variac and Isolation Transformer

Here is a large dim bulb tester and variable AC power supply that will provide up to 240 Volts. It current limits at “Around” 1 amp at 120V, and 500mA at 240V with the bulbs switched in. This is a dangerous build. If you build this, it’s at your own risk. I suggest you don’t build this power supply!… Unless you know what your doing.

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