Electronics Attenuator
Two low voltage, low power zeners are used to control electronically the level of an audio signal. The attenuation range is from 6 to 58dB for an input current from 0.042 to 77 mA corresponding to a control voltage from 2.7 to 7.5V. If control voltage is limited to 5V, the attenuation is around 30dB at a control current of 2mA. This is not an HiFi attenuator but might come useful as a general purpose audio attenuator.
Title: Electronics Attenuator
electronic circuit
Source: www.electronics-lab.com
Published on: 2005-02-01
Reads: 1056
Print version:
Other electronic circuits and schematics from Audio
-
25W Mosfet audio amplifier
-
Precision Audio Millivoltmeter
-
3 Transistor Audio Amp (50 milliwatt)
-
Infrared Head Phones
-
Simple Intercom
-
Sound Pressure Level Meter
-
10W Audio Amplifier with Bass-boost
-
100W Audio Amplifier
-
3 Line Mixer
-
Three-Level Audio Power Indicator