We found this circuit in the 1990 Motorola Linear Databook. The circuit must use symmetric source and has 10times the voltage gain.
This Radio Electronics circuit, in an 80's edition, decodes the 67 kHz signal used at the time to...
We find this circuit in a manual of the 80's own used components. The circuit provides an...
This circuit is from an old publication of the 70's. It can be implemented with modern transistors like the...