Amp 4 ohm 100 rms

126

02:04:42

2sa5200 2sa1943 
Tip41 tip42
Bd139 d140
Tl072

published 7 years ago

hurz

7 years ago

The opamp input must be swapped or you run into a rectangular generation as schmitt trigger. “100 rms“ suppose to be just 50Watt in this +-20 setup, but with +-45V supply from math point of view 250Watt (rms) @4Ohm is possible.

erenhdhjd

7 years ago

2 ohm ?

hurz

7 years ago

P=U²/R but 2Ohm loudspeaker are shit

hurz

7 years ago

You have made changes here and there but the biggest issue is from 260mV peak visible cuz the controlling opamp input has to be swap input terminals +- or its a schmitt trigger and not an amplifier

hurz

7 years ago

Dont you see that http://everycircuit.com/circuit/6100683140104192 ???????????

hurz

7 years ago

You create more and more nonsense, check your latest input circuit i separated but did not modified, check its schmitt trigger behaviour caused by positive feedback. This is not a linear preamp stage as long you mix +-input terminals. Check this http://everycircuit.com/circuit/4564608554893312

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