17-07-2019, 10:21 PM
What resistance do you get from the emitter of the TIP31 transistor lead lead as opposed to the board track. It should be less than one ohm.
Then measure the collector tab of the TIP31 to the smoothing capacitor this should read very low as well.
A photo of each side of the board would be useful too.
Then measure the collector tab of the TIP31 to the smoothing capacitor this should read very low as well.
A photo of each side of the board would be useful too.
