This circuit is from Mullard 1969 documentation. The circuit operates at a relatively high supply voltage and has a 10 Vpp output. The transistors are of the time, but admit equivalents.
The purpose of this circuit is to extend the range of frequency meters (typically up to 30 MHz) to...
This basic configuration of an astable multivibrator was found in a publication of the year 1968....
The frequency of TTL square signal is divide by 5 with this circuit. Power supply is 5 V and the...