Based on a PLL 567, this circuit serves as a receiver for the CB9574E circuit. S tuning is done in R1 and it is used for frequency modulated signals.
This TTL decoder circuit for PC ports was found in a document from 1992. The power supply can be...
We found this circuit in a 1995 paper. The reed switches are surrounded by a few coils of coarse...
Texas Instruments ESD122 Electrostatic Discharge Diodes (ESD) can be ordered from Mouser...