High Fidelity Audio Amplifier
Dual Tone Generator
Water Hammer Seismometer
What to do with obsolete Clock Chips
The Bug Duster
Mouse Versions of Apps for PCs (with little keypad).
Virtual Projects - LTSpice schematics
Low Frequency Active Antenna works at the end of a long coax run.
Schumann Resonance Converter
Prospector's Ionization Chamber
PPS Generator (1, 10, 100, 1000 PPS)
White Noise Generators
Electronic Mouse/Rat Trap
Portable Radon Detector
Extremely Isolated High Voltage Supply
Low Noise, High Gain Audio Preamplifier
What The Heck are these circuits? (scraps of paper with schematics).
RF Isolator Notes are random notes and ideas regarding my Isolator/Circulator. These are just notes, so errors may exist. It looks like I was trying to come up with a version that uses standard resistor values.
MC1466 Replacement Circuit, possibly.
10MHz to 60 Hz frequency divider