no it is not an open circuit.
It is the impedance of air over that distance.
Its several hundred megohms.
There are voltmeters with 1G input impedance, and these
work just fine.
Or measure the bias before the 5M or 10M resistor
I think the added transformers are a pretty simple thing to do.
eric, you now have to buy the burson, the various audio-gd discrete opamps, and a few of the others
and start opamp rolling with your tube rolling.
you could keep this thread going on forever.
An amplifier like this designed for speakers would have absolutely no trouble driving 2 x k1000 @ 120 ohms each, and 1 x he6 @ 50 ohms all at thesame time. In fact the combined impedance of about 27 ohms is still high compared to the 8 or 4 ohm load a speaker would have.
I am absolutely convinced that I can build a KGST and a SSDynalo balanced
into one box, not much bigger than a luminare.
No compromise. Best of both. At the same time.
For about $1500 including chassis.
Could do the same thing for a T2 and a SSdynahi, but the box is going
to be a whole lot bigger.
Find a singlepower concerto. Does electrostatic and dynamic.