[Amps] Output Impedance 4-572B's in Parallel

[Phil Clements]

Subject: RE: [Amps] Output Impedance 4-572B's in Parallel


> Sorry if my question was misleading.  The data that I am
missing and
> cannot find is the operating characteristics of Taylor
572B's.  You have
> all seen the curves.  I do not want to read plate voltage
and plate
> current off the front panel meter that are already
affected by an
> improperly designed tank circuit and bad tubes.  I am well
aware of the
> handbook formulas.  Thanks & 73, Tim

Your question was misleading because you asked for load
impedance.
My guess now is that you want to know what maximum anode
voltage and
current is for a 572-B. Max. voltage is 2750, and max.
current is 275 ma per tube.
If your plan is to run 4 tubes at the max. then the plate
load impedance would be
1388 ohms, but only if you are running 2750 volts @ 1100 ma.
Again, we are
also assuming AB-2 or B class.

(((73)))
Phil, K5PC