Here is the circuit diagram of stereo digital volume control. This circuit could possibly be applied for upgrading your manual volume management within a stereo amplifier circuit. In this particular circuit, push-to-on switch S1 controls the forward (volume enhance) operation of the two channels while a identical switch S2 controls reverse (volume reduce) operation of the two channels.
Below circuit is the tone booster circuit. According to the name of circuit, the purpose is to gain the sound signal to become more powerful in both low and high frequencies. Transistor type: Q1 – ztx384 ; Q2 – BC415p The circuit’s peaks frequencies is at 5000 Hz for a cleaner and more penetrating sound.
The following diagram is the schematic diagram of Active Tone Control circuit, or we often call thic circuit as “ACTOR” Active Tone Control or ACTOR is a electronic audio circuit that serves to increase the Loudness (Bass and Treble audio signal) is active because it uses the Baxandall system. This circuit does not use a potentiometer so that the output audio signal can not be controlled. S1 is used as [...]
The following diagram is the circuit diagram of 12V stereo tone control which also available in kit, you may find the kit at electronic part store around your place. The circuit build based on ordinary tone control circuit, using 2 transistors FCS9014 in each channel, so there are will be 4 transistors in this 12v stereo tone control. Take a note that you must connect the circuit before the amplifier [...]