| Electronics > Beginners |
| Please need help to calculate gain from circuit. |
| (1/3) > >> |
| FriedMule:
Can anyone help calculating this amplifier circuit's gain? I do not know if this task are a insane large one or even manageable. For me it is totally impossible. You have properly seen this circuit before, that Is what I constantly are bothering you with! :-) |
| DuPe:
roughly ×5? (100k//100k) / (10k+2k). anything right of level shifter are emitter followers, having gain of about 1 |
| FriedMule:
not more then 5?! wow that was not much!! Does that mean that a i.e. CD-player with a line out at 1Vpp only end in 5Vpp to the speaker?! |
| orbanp:
--- Quote from: DuPe on June 24, 2018, 10:15:34 am ---roughly ×5? (100k//100k) / (10k+2k). anything right of level shifter are emitter followers, having gain of about 1 --- End quote --- It is more than that! The 10k resistor is bypassed by the 100uF // 100nF caps! So the gain is (100k//100k) / 2k = 25 Peter |
| FriedMule:
Thanks a lot, so it is about 25Vpp out pr channel? Does that not sound as about 36W out? EDIT: the transformer are 26V-0V-0V-26V on the schematic, it is about 80W out, why? |
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