We found this antenna amplifier or Booster circuit in an Electronics Now from the 90s. The circuit can be implemented with equivalent transistors like the BF494.
The purpose of this circuit is to re-trigger slow scan circuits used in the 1980s on low frequency...
In the previous circuit (CB15632E) the steps just go up. To obtain ascending and descending cycles...
This circuit is from an old Japanese documentation from the 60s. The circuit uses transistors from...