This circuit is suitable for the calibration of old analog oscilloscopes. It was found in documentation from the 1970s and could be useful if someone is recovering an oscilloscope of the time.
This simple circuit of effects is interspersed between the instrument and the amplifier. It is...
January 2017 - STMicroelectronics' new TN4015H SCRs with 40 A currents and high temperature...
This circuit is for old telephones with analog lines. It was found in the May 1988 Radio...