We found this active crossover in a Radio Electronics magazine from June 1961. Note the different adjustment ranges. The signal must be applied to the amplifier input.
Found in a 90s Popular Electronics, this transistorized circuit generates pulses from 2 Hz to 50...
This oscillator was found in a 1967 General Electric documentation. The UJT is P-channel, an unusual...
Found in a documentation from the 90s, this circuit has a typical accuracy of 2% with 20 V signals at...