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Ring Oscillators: Fairchild DTL 949

Three-inverter ring oscillator with fourth gate as a buffer

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Built a three-inverter ring oscillator on solderless breadboard using Fairchild DTL 949 NAND gate from 1968; unused input are tied to Vcc and output is buffered with the remaining NAND gate. Operates around 10.3MHz.

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Dana Myers wrote 07/17/2020 at 19:07 point

BTW, check out the logic level, ~2.7V

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