Basic HTML Version
Flashlamp Circuit
The microprocessor toggles the output of the 74LS374.
When point "A" is low, point "8" the collector of the 2N5401 transistor is
high. Once point "8" is high, point "C" the collector of the TIP1 02 transistor is low. When point "C" is low the f1ashlamp is grounded
through the transistor and the flashlamp turns On. When point "A" toggles high the circuit shuts Off.
Special (General Purpose) Solenoid Circuit
The microprocessor toggles the output of the 74LS374. When point "A" drops low, point "8" is high. A high at point "8" causes a
low at point "C". When point "C" is low the coillflashlamp is grounded through the transistor and the coillflashlamp turns On. When
point "A" toggles high the coillflashlamp turns Off.
*Tieback Diode is not used for flash lamp circuit.
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