326 / | HD | ELECTRONIC DIGITAL LOGIC CIRCUITRY |
21 | DF | SIGNAL SENSITIVITY OR TRANSMISSION INTEGRITY {5} |
31 | .~ Signal level or switching threshold stabilization {3} | |
32 | DF | .~.~> Temperature compensation |
33 | DF | .~.~> Bias or power supply level stabilization |
34 | DF | .~.~> With field effect-transistor |