LM317T Voltage Regulator with Pass Transistor

This is a demonstration of a "Minimum Theremin" electronic project that I got from Art's Minimum Theremin website. It is very simple to build and uses 2 hex inverter IC chips. Other components include resistors, electrolytic and ceramic capacitors, and 2 trim pots (variable potentiometers). I used a pie plate as an antenna and hope to improve it by finding a better antenna. The original design used a 9 VDC battery and a 5 VDC voltage regulator TO5 chip but I had a regulated 5 V power supply handy and substituted that.



http://www.youtube.com/watch?v=U0pflm4VxX4&hl=en

HTPC Hell htpc-hell.zxq.net



http://www.youtube.com/watch?v=kOfSK4Afo1o&hl=en

This a great amp. It has a Voltage Regulator on it that takes it from 1/4 Watt up to 6 Watts. I used my 50's RI Telecaster into a Kendrick Reverb then into the S2 through a 1x12 open back cab.



http://www.youtube.com/watch?v=uTXkqyRslx8&hl=en