This circuit uses uncommon Texas Instruments components today. The circuit is from an American documentation. Transistors are commonly used PNP. The display is 7 segment multiplexed.
This circuit identifies the polarity of DC signals and if the signal is AC. The circuit is from...
In the figure we have a modified multiplier circuit that can operate with the sextuplicator with...
This circuit is from the Motorola Linear Databook published in 1990. The circuit for 1 kHz can be...