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Old 17th June 2012, 03:47 PM   #1
sam18 is offline sam18  United Kingdom
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Default where to place potentiometer to get volume control

hello there, im trying to build this circuit, its a 300watt mosfet amp but i cant seem to get it to work. also where can i place a pot so i can get volume control?
thanks sam

here is the schematics:
300 Watt MOSFET Real HI-FI Power Amplifier | EEWeb

i would like an urgent reply on this because i really want to build this amp.
thanks
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Old 17th June 2012, 05:27 PM   #2
sam18 is offline sam18  United Kingdom
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Old 17th June 2012, 05:44 PM   #3
AndrewT is offline AndrewT  Scotland
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At the output of the last stage before the Power Amplifier. But the vol pot may need a buffer to drive the intervening cable.
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Old 17th June 2012, 05:48 PM   #4
sam18 is offline sam18  United Kingdom
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sorry im new to this could you be a little more less technical :/
thanks sam
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Old 17th June 2012, 06:21 PM   #5
AndrewT is offline AndrewT  Scotland
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Locate the volume potentiometer in the last stage before the Power Amplifier.
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Old 17th June 2012, 06:28 PM   #6
sam18 is offline sam18  United Kingdom
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okay thanks, what wattage would you suggest i build for the first stage then? thanks sam
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Old 20th June 2012, 07:09 AM   #7
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Old 20th June 2012, 03:51 PM   #8
DF96 is offline DF96  England
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"There is not one capacitor in the signal path" says the designer of that amp. Clearly he doesn't regard the usual caps at the base of the feedback network or the Zobel as being "in the signal path". Audio seems to attract more than its fair share of self-delusionists! Fortunately, when used correctly, caps do no harm.
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