# Digital-Electronics Obstacle Course

From APL

## Permanent Materials (located in the electronics area):

- power supplies

- function generators

- oscilloscopes

- Fluke 179 multimeter (MM)

- capacitance meter

- electronic proto-boards

- wire, resistors, capacitors, inductors, diodes, Op-Amps, other ICs

### Materials to borrow when necessary

- LTSpice circuit simulation software (on computers in lab)

- lab copy of *The Art of Electronics*, Horowitz & Hill

- inductance meter

- Keithley voltage supply

### Activities

- Read chapter 8 of Horowitz & Hill's
*The Art of Electronics*. - Read Chapters 10 and 11 of Keith Brindley's eBook
*Starting Electronics*.

**The inverter or NOT gate**

- Using T1 = TIP31C, R = 10k, R2 = 1k, Vcc = 10VDC construct the circuit shown at the right.
- Apply 0V to input A. What's the output Q?
- Apply 10V to input A. What's the output Q?
- Taking 0 (or close to zero) volts to be logic state "0" and 10 (or close to ten) volts to be logic state "1" construct the logic state truth table for this circuit (see right).
- What type of logic gate does the truth table indicate?