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Mark Levinson ML3 bias voltage?

I really need three things. but the first is the most important.

1. Does anyone know what the bias voltage across the output emitter resistors is for a Mark Levinson ML 3 amp?
2 does anyone have an accurate schematic for this amp? Mark Levinson to this day will not release the schematic for such an old amp. and reverse engineering is really a pain.

Any help on this is greatly appreciated.

enjoy

minorl
minorl OP
1,016 posts
 
That is a great help.

Thanks Dhl93449. I appreciate your input.
dhl93449
455 posts
 
Minorl;

One quick thing I thought of after my last post. When I was adjusting bias for the JC1s, I measured the total power dissipation with those digital power meters you can get at the hardware store. You plug your appliance into these and they measure the total power consumed.

You can use this to set the bias so the total power reads Levinson's spec of 180W. This will prevent you from over biasing because it takes into account the consumption in the rest of the amp.
brian_eno
25 posts
 

Bias: 47mV

Multimeter rods on positive emitterbus and positive output.

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