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Digital logic based circuits

4-bit addition operation and subtraction circuit with logic gates

Digital  logic  circuit with Diodes and transistors  and their waveforms

Full Adder circuit

Input resistance of a two- transistor or gate circuit

The NOT circuit using transistors

Transistor or gate trigger circuit

Half adder and full adder circuit for 4-bit addition

Full adder circuit for addition operations

VFC32 based voltage -frequency and -frequency - voltage converter circuit

Digital AND circuit With diodes and resistors C = A · B