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.
By connecting a common diode in series, it is possible to add temperature stability to the...
This circuit makes use of a Texas Instruments LinMOS operating system and requires the use of a...
This simple 1-transistor audio preamplifier appeared in the June 1968 Radio Electronics magazine. The...