Details：

Distortion: 0.008% (10Hz～100KHz)

Frequency response: 10Hz～100KHz (±0.2db)

Output impedance: 200 ohms

Gain ：1 time

Tube Model: 6DJ8, 6922, or 6N11 x 2pcs

PCB size: 10×10cm

Work voltage：± 12V-30V (Recommend ± 28V)

Filament power supply: AC / DC12V--12.6V

Note ：

This is diy pcb ，not included any parts ！

Picture 7 of 9

Picture 6 of 9

Assembled board ，just for reference：

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Picture 1 of 9