Found in old documentation, this source uses an integrated circuit from that time, which is uncommon nowadays. The power source has a ripple below 1 mV.
This circuit was obtained in a 1979 magazine, but it can be easily assembled today, as the...
This alternating voltage voltmeter was found in a 1967 magazine. The magazine no longer exists, but...
The proposed circuit generates signals in the range between 9 kHz and more than 44 kHz, which, it is...