FET simple mixer (CB8760E)

We found this simple mixer in a 90s Radio Electronics. The used FETs are still common. The inputs are high impedance.

1W Amplifier For Headphones (CB12960E)
The circuit shown in the figure is suggested by ON Semiconductor (www.onsemi.com), based on its...
LMH2832 Variable Gain Digital Amplifier (COM119E)
September 2016 - can be found at Mouser Electronics the new amplifiers with digital variable gain...
Audio Mixer Preamplifier (CB23904E)
This simple 1-transistor audio preamplifier appeared in the June 1968 Radio Electronics magazine. The...