Assembled Mono 21W Pure Class A Single-Ended Audio Power Amplifier Board Based On Sugden A21 circuit

Product Details:

Based on the famous Sugden A21 pure class A amplifier circuit.

Mono 21W pure class A single-ended OTL power amplifier board

Power supply voltage: AC35V*1(mono 150W)

Output power: 21W

Quiescent current: 800mA~1000mA

Debugging method: Before power on, adjust the potentiometer clockwise to the end. After the power-on test sound is normal, turn it counterclockwise and adjust the voltage across the 1-ohm resistor to 800mV-1V.

Use ELNA main capacitor imported from Japan.

Use new transistor MJL21194

PCB size: 226*65MM

Net weight: about 0.24KG

Note: This is mono, if you need stereo, you need to buy two

Package List:

1 × Sugden A21 Mono 21w Power Amplifier Board