Hi Guys,
I'm interested in using this schematic but I don't follow how the gain stage/phase splitter is operating. As far as I can tell the gain stage/phase splitter does not have a DC reference on the cathodes only an AC reference. I see a 100 ohm resistor between the cathodes with a 100uF cap from one side of the resistor to ground. Is this a mistake in the drawing or do I not understand what I'm looking at (most likely)? Can anyone explain the operation of this stage? I would appreciate it much.
G
I'm interested in using this schematic but I don't follow how the gain stage/phase splitter is operating. As far as I can tell the gain stage/phase splitter does not have a DC reference on the cathodes only an AC reference. I see a 100 ohm resistor between the cathodes with a 100uF cap from one side of the resistor to ground. Is this a mistake in the drawing or do I not understand what I'm looking at (most likely)? Can anyone explain the operation of this stage? I would appreciate it much.
G
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Hi Gavin,
Yes,circuits like this can get a bit confusing....
Thing is you see grounding is taken,with B+ for the preamp to a separate chassis.
So as long as you don't see these two as a pair it won't make much sense.
The amp as shown get its signal straight into the phase splitter and that drives the output stage.
Cheers,
Hi Gavin,
Yes,circuits like this can get a bit confusing....
Thing is you see grounding is taken,with B+ for the preamp to a separate chassis.
So as long as you don't see these two as a pair it won't make much sense.
The amp as shown get its signal straight into the phase splitter and that drives the output stage.
Cheers,
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