xwarp

7408(N,J) is a Quadruple 2-input positive and gates. 74ls08, 74s08, 54ls08, 54s08, 5408 are the same chip.

the value of C5 and L1 pretty much controls the "carrier" frequency. basically like a radio station. the carrier is 97.5, your receiver picks up the carrier, removes the carrier, and what is left turns into audio. reason for keeping all connections short is because this affects the tuning of C5 and L1. example: if you do the math for C5 and L1 and have a result of 102.7 MHZ and any of the wires that connect to L1 are 6 feet long and just kinda looped here and there, you have basically created an inductor which changes your frequency. hope this helps. tried to keep it simple and correct and if it's not correct, i'm sure someone will correct me.