Marantz amp

[The Peasant]

Hello, Dave,

> Hello, I'm diying my Marantz PM-30 amp here.
> I'm setting the DC's of the amp, as I found them to be different in L&R.
> Now I couldn't find any specs or data sheets online for
> C3180n
> A1263n
>
> Thanks for any links, or even... Does anyone know the ideal 'neutral' DC
> for those?
> .63 Volts?

The "bias" of an amplifier is usually set to a particular value of current
passing through either output transistor's collector at idle (no signal).
This is commonly measured as a millivolt drop across the emitter current
limiting resistor on the output transistor. But unfortunately I do not know
what value it should be for your amplifier.

> Ps. I'm not totally familiar with english equivalents for the dutch words
> like instelspanning en ruststroom.

Yeah, I'm not either ;-)

Take care,
Doug
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The Electronic Peasant

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