With the capacitor used, this circuit provides delays of 40 to 60 seconds. Larger capacitors can be used, and the SCR supports an equivalent. The circuit is from the 1977 RC semiconductor manual.
This digital signal attenuator was found in a 90s Electronic Design. The circuit operates at...
This second-order low-pass Salen-Key filter was obtained from an American 1980s documentation. Formulas...
This simple MAT generator circuit was found in a 1986 documentation. The Q2 transistor can be...