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Old 09-01-2010, 07:24 AM
xee2 xee2 is offline
Silver Member
Join Date: Jan 2010
Posts: 580
another tranasistor protection test

This test was with a transistor that has a higher Veb max than the MPSA06. The transistor gets hot slowly at 12 volts - needs a better heat sink. This circuit will light fluorescent tube wirelessly with 33 mA from an AA battery cell phone charger.

Whoops ---- I had my LED backwards. I have replaced circuit diagram to show corrected circuit. 1N4007 diodes were removed since they were not doing anything. Sorry about the mistake. This is just about what Slayer has already posted.

circuit =

heat sink photo =

coil photo 12 volts =

Last edited by xee2; 09-02-2010 at 04:42 AM.
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