ELEC 332

Design Challenge

This week's design challenge is pretty simple: build a microphone amplifier to allow our simple transmitter to transmit speech as well as sine waves. Your circuit should fit on a 1.5 x 1.5 inch breadboard module (BRD1x1), use a Kobicon 161-3507 jack for the microphone input, and an SMB connector for the amplified output. When used with the dynamic microphone from the ELEC 241 lab, and speaking at a normal level, the output should sufficient to fully modulate signal from the AM transmitter module.

Your design should use parts that are available from stock (we have the phone jacks and SMB connectors). If you're feeling nostalgic, you can use thru-hole components from the 342 parts bins, but surface mount should be easier to fit into the limited space.