# Logic gates

Objective

Study of logic gates using SQ1 and PV1 as inputs, using TTL logic ICs 7408 and 7432.

Procedure

- Enable A1, A2 ands A3. Set input range on A1 and A2 to 8V

- Set SQ1 to 200 Hz and adjust timebase to view several cycles

- Select SQ2 from the WG wave shape, set WG to 200 Hz

- Repeat using the OR gate, 7432

- The 1k resistor is required to give the 5 volt signal to A3 input

Discussion

The working of the logic gate will be evident from the 3 waveforms. You may shift traces vertically to separate them for clarity.