This circuit generates output pulses with sequential delays. The delays can be programmed by the values of the resistors and the capacitor. The supply voltage can typically be between 5 and 12 V.
Today we have more compact solutions. This is from a Radio Electronics magazine from October 1990....
This filter was found in Texas Instruments documentation from the 1980s. The circuit uses a common...
16 commercial test circuit for tubes and transistors appeared in Radio Electronics magazine in...