Hi All tube lovers
I am building a 20 watt Single Ended amplifier on a shoestring budget. This is the specifications I want to meet or exceed:
Output power: 8W*2 (superlinear connection).
Frequency response: 30Hz--38KHz.
Output impedance: 4,8Ω.
Total harmonic distortion: ≤ 1% (1kHz).
Input sensitivity: 550MV.
Input impedance: 100KΩ (two input signals)
Input: RCA for PC / AUX
Proposed design:
output tubes: 807 (triode or tetrode being considered)
good bass response: primary inductance of the output transformers around 40 Henry.
width of the amp: 290mm
dept of the amp: 230mm (might even be less)
decent power transformer
decent output transformers with cathode feedback winding
regular CRC power supply
This design comes to mind:
I am building a 20 watt Single Ended amplifier on a shoestring budget. This is the specifications I want to meet or exceed:
Output power: 8W*2 (superlinear connection).
Frequency response: 30Hz--38KHz.
Output impedance: 4,8Ω.
Total harmonic distortion: ≤ 1% (1kHz).
Input sensitivity: 550MV.
Input impedance: 100KΩ (two input signals)
Input: RCA for PC / AUX
Proposed design:
output tubes: 807 (triode or tetrode being considered)
good bass response: primary inductance of the output transformers around 40 Henry.
width of the amp: 290mm
dept of the amp: 230mm (might even be less)
decent power transformer
decent output transformers with cathode feedback winding
regular CRC power supply
This design comes to mind:
