Re(2): [sdiy] Tube amplifier question

[jhaible at debitel.net]

> > (Note that the values are optimized to give the lowest output 
> > impedance.) 
> 
> Is this so? I was surprised to see R4 having a rather
> low value in your circuit. I thought higher anode resistor
> would decrease output impedance (but decrease large signal
> drive capability). So I would have thought your cuircuit
> was optimised for drive capability instead of low small
> signal output impedance. (?)

Well, forgot to say: what I simulated was without bypass cap of the
upper cathode resistor. This might change the whole thing.
(Will it?)

JH.


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