On Sun, 25 Mar 2012 16:39:57 -0700, gary <[email protected]> wrote:
>I'm not so sure about the circuit. The base drive on Q3 is more of less >AC given that the resistor can only pull current out of the base. That >is, I don't see a DC bias on Q3. R7, R8, and LED D2 sets the base voltage at about 1.8 volts through R4. Subtract Vbe and Q3's idle current will be about 36 milliamps set by 1.2 volts across the 33 ohm emitter resistor. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
