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Build a Stunning 3W Tube Amplifier with 6BX7
Circuit Diagram
- Output Power – 3 Watts / 8 Ohm / 1 kHz
- Input Sensitivity – 600 mV for 2 Watts
- Distortion – 3%
- Frequency Response – 22 Hz – 50 kHz / -3 dB
- Signal-to-Noise Ratio – 90 dB
Part List
- R1= 22Kohm
- R2-3= 1Kohm
- R4-5= 1.5Kohm
- R6-7= 470Kohm
- R8-9= 1Kohm 2W
- RV1= 250Kohm Log. pot.
- C1-7-9= 100nF 1KV
- C2= 220uF 350V
- C3= 150nF 400V
- C4= 100uF 25V
- C6-8= 2X100μF 350V
- D1-2= 1N4007
- V1= ECC81
- V2= 6BX7
- T1= 220V@2X250V/6.3V/6.3V
- T2=Audio transformer