This circuit was found in a 70s documentation. The transistor is from that time. L1 has 4 turns of wire 20 in the form of 3/32 inches and L1 has 10 turns of the same wire,
This circuit generates rectangular clock signals for CMOS applications. The capacitor can have...
Any operational amplifier, like the 741, can be used on this oscillator whose frequency depends on R1...
This configuration, which uses a transistorized circuit in the feedback, provides a logarithmic response...