C118 at amplifier output pin. C424 between amplifier input and output pins. VR3 between amplifier input and output pins.
Can we disconnect PIN3 of VR3 from PIN7 of Opamp? I cannot understand the purpose of this connection. PIN3 can be either left floating or maybe connected to ground to do volume control function through VR3. Please correct me if I am wrong here.
The power supply of the circuit is +/- 15 VDC.
If the circuit include 2 stages and the first stage is without the feedback resistor as in following diagram then is it ok?
In my second circuit diagram what is the meaning of 'Audio+' and 'Audio-' labels? Does it means that I can connect my mono headphones on these two points instead of using a 0 V (GND) reference for the headphones jack?