lm1875 overloads on treble boost

winner · 10th February 2009, 12:31 PM

i recently built a power amp using lm 1875 and +-25volt power supply but on treble boosting the preamp at high volume supply reduces to+-6 volts( too much current drawn) what could be the problem?

sivan_and · 10th February 2009, 02:29 PM

High frequency oscillations..beware ur TWEETERS are @ risk !!!

Luck · 11th February 2009, 12:58 PM

Hi,i think we a need a picture of your LM1875 amp.

sivan_and · 11th February 2009, 02:08 PM

i think what mr luck meant was schematic !!!

10th February 2009, 12:31 PM	#1
winner diyAudio Member Join Date: Jan 2009	lm1875 overloads on treble boost i recently built a power amp using lm 1875 and +-25volt power supply but on treble boosting the preamp at high volume supply reduces to+-6 volts( too much current drawn) what could be the problem?

10th February 2009, 02:29 PM	#2
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	High frequency oscillations..beware ur TWEETERS are @ risk !!! __________________ SivanandBalan

11th February 2009, 02:08 PM	#4
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	i think what mr luck meant was schematic !!! __________________ SivanandBalan

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11th February 2009, 12:58 PM	#3
Luck diyAudio Member Join Date: Jul 2006	Hi,i think we a need a picture of your LM1875 amp.

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