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Old 10-30-2019, 12:15 AM
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SkyWatcher SkyWatcher is offline
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Join Date: Apr 2008
Posts: 2,419
Hi all, I tested the u-core and could not get much current output from the secondary multistrand coil.
So, decided to straighten out the u-core and place the drive coil and secondary coil, directly next to each other on that core.
It works much better, the identical led bulb load, that is connected across the secondary coil, is lighted to the same brightness as the led bulb that is connected to the flyback diode, off the drive coil.

When the secondary coil is loaded, depending on the tuning of the potentiometer, the input current either stays the same, or lowers a little when loaded.
Though it never seems to increase when loaded, which is interesting.
peace love light
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