This circuit was obtained from a 1980's QST magazine. The circuit can generate 1 to 15 MHz signals with 1 Vpp at 50 ohms load. Used transistors are still common today.
This amplifier with antique germanium transistors is from a 1968 publication. The circuit provides...
This circuit was found in an old documentation from 1968. The voltage gain is 70 and the...
This digital CMOS circuit generates sinusoidal signals from a 10 kHz rectangular signal. The...