This circuit is from an American 80's documentation. The integrated circuit is from the time and the sensor consists of a smoke chamber measuring its transparency change.
This circuit was found in a publication of1994, originally obtained from the National...
This circuit for the 85 to 95 MHz band has a gain of 15 dB. We find it in a 1980s documentation. The...
This 1967 Motorola circuit is intended for operation with signals up to 250 MHz delivering a 50 MHz...