Bass control (CB8722E)

Found in a 1993 Electronics Hobbyst Handbook, this passive circuit can be used with common preamplifiers and amplifiers.

Square Power Generator (CB15143E)
We found this oscillator that can supply up to 3 A of output in the 1982 SGS linear integrated circuit...
Low Noise Phono Amplifier (CB4762E)
This turntable amplifier can be used for media recovery by turning it into digital form, for...
Photodiode Amplifier (CB14092E)
This traditional configuration with the LM108 was obtained in the Linear Applications Handbook of the...