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Old 20th February 2018, 07:07 AM   #91
Mooly is offline Mooly  United Kingdom
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New Project Marantz 2250b
Yes, but removing it will increase the bias current so be sure to turn it back down to zero first.
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Old 20th February 2018, 09:53 PM   #92
pjf610 is offline pjf610
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Done no problem
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Old 20th February 2018, 10:04 PM   #93
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I put a 1khz tone through the right channel( with my signal gen.) all is well but when i hooked it up to the left channel nothing. I get 0v on the DC offset 10mv on the bias yet can not get a tone
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Old 21st February 2018, 07:23 AM   #94
Mooly is offline Mooly  United Kingdom
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So you need to apply the same signal to both channels and use your scope to look at the signal directly on the base of H702.

You should see identical signal levels for both channels. Remember there will be a slight DC offset on the base but the signal will be superimposed onto that.
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