The maximum power supply voltage for the LM380N is 22V. Exceeding this voltage may cause damage to the device.
To ensure stability, use a bypass capacitor (typically 10uF to 100uF) between the power supply pins (VCC and GND) and keep the input and output impedance low. Also, use a decoupling capacitor (typically 0.1uF to 1uF) between the power supply pins and the amplifier input.
The minimum load impedance for the LM380N is 2kΩ. Using a load impedance lower than this may cause distortion and instability.
Yes, you can use two LM380N devices to create a stereo amplifier. Each device can be used to amplify one channel of the stereo signal.
To reduce noise and hum, use a well-regulated power supply, keep the circuit layout clean and compact, and use shielding and grounding techniques to minimize electromagnetic interference (EMI).