This low power bass booster is from the 1977 National Semiconductor Audio Handbook. The circuit is powered by 6 to 9 V voltages and the feedback determines the enhanced bass range.
This circuit was found in Radio Electronics from the 90s. The CMOS integrated circuit is a PLL not...
This circuit was found in a Japanese publication in 1975. It provides 30 W per channel using the...
Depending on the value of C1, this oscillator can produce signals of up to 1 MHz. For a capacitor of 10...