The integrated circuit used in this' 90s amplifier is not very common today. The supply is 24 V, the gain is 50dB and the input resistance is 100 k. The circuit is from an old circuit manual.
This interesting circuit provides an output proportional to the input voltage, regardless of its...
The proposed circuit generates signals in the range between 9 kHz and more than 44 kHz, which, it is...
A modulated (intermittent) siren, using the four gates of the 4001 integrated circuit is shown in the...