Hello fellow self taught electronics hobbyists. Im 72. I have a life long interest in electronics. I took 6 courses in Jr college on electronics but didn't do well I have a learning disability where I have to scan a page then read it again backwards from bottom to top. I am a guitarist and fledgling song writer. At 14 I started playing a gifted beater guitar some one gave me, I read Popular Electronics and built a Fuzz tone from a kit. More recently I have modded a Fender Deluxe Reverb tube amp, And Modded a 5 watt tube amp adding a tone stack. I have a few amps and Arduino projects waiting...