Alternately Flash 2 LEDs with One Transistor - Sponsored by Solderstick Wire Connectors
Alternately Flash 2 LEDs with One Transistor
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In this video we look at a circuit that published in Forrest Mims, “Timer, op Amp Circuits and projects book. On page 91 is the Dual LED Flasher. This circuit uses a self flashing LED, a standard 5mm LED and a transistor to alternately flash the LEDs. When the Self Flash LED (SFL) is “on“ no current flows into the base of the 2n2222 transistor, so the other LED is off. When the SFL is off, current flows into the base of the 2n2222 and the standard LED is on.
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Yes, I know my hands are large/fat. It’s because of a heart condition I suffer from called Congestive Heart Failure. Here’s a link to some information about CHF:
One of the symptoms is that it causes fluid retention, mostly in the hands, feet/ankles, and face..
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Gear I use:
Multimeter: OWON B33
Oscilloscope: KIPRIM DS1202
Signal generator: Junctek JDS8080
Component Tester: T7 Multifunction
Soldering Station: Sealody ???????
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