The signal amplifier transistor adopts original imported BC556, 5551, 5401 audio dedicated signal tube
TL071 Brand new original NS. All resistors use genuine metal film resistor copper feet, 1% accuracy, including high-power resistors.
The power tube adopts the brand-new KEC brand power tube imported from Korea.
KTD1047 100W power tube
KTA 1659A 20W audio driver tube.
The inductance is manually measured by a precision digital bridge, with an accuracy of 0.01UH 0.1%.
Supply voltage: >= + -30V, <= + -50V
PCB size: 95MM length *75MM width
Power 50-100W 8 R
100W (+-50V) power supply