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Unanswered Questions





BJT Transistors June 2012

How do you measure BJT hybrid parameters HF, HI, HO, and HR?

#6129
Jose Perez
Guaynabo, PR


Solar LED Illumination June 2012

For several years, we have used a solar yellow LED deck lamp as a "Welcome Light" for our camper — the 12V "patio light" is just too bright, and ruins the moment. I would like to have a simple NiMH/NiCad amber LED light that would be charged via solar, but also from the 12V onboard power when available. I also need an on/off switch for the LED.

# 6121
William Hogan
West Lafayette, IN

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