Found in an Electronic Design from the 90s, this circuit generates a mathematical function given by the formulas next to the diagram. The basic component is from the period.
We found this oscillator in a documentation for radio amateurs from the 1970s. The circuit can use...
Many oscilloscopes have high impedance inputs that make it difficult to observe high frequency signals...
This is the receiver for the previous circuit we found in the December 1992 Radio Electronics...