Bass Control (CB21294E)

This circuit with losses of 20 dB at 350 Hz was found in older documentation, but it applies to modern preamp and amplifier circuits.

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Differential Multiplexer (CB5352E)
This circuit was found in an ancient American documentation. The integrated circuit is of the time...
VHF Receiver (CB21204E)
Found in an older Radio Craft, this circuit covers the aerial band from 118 to 136 MHz. No...
40 dB Gain Amplifier LM382 (CB4763E)
This amplifier was found in a Radio Electronics of the 90s. The circuit uses unusual operational...