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In Reply to: RE: Difference between an AVC and a TVC posted by xaudiomanx on March 16, 2015 at 18:57:21
I misunderstood.
Yes, 600 ohms should driver the AVC OK.
Lower would be better.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Follow Ups:
It might be low enough depending.
I don't know what output transformer you have but if I guess a 15k:600 ohm
and I don't know what the circuit looks like but if you are parafeeding the output transformer then plate resistor on the 26 then it's in parallel with the plate resistance of the 26 so your stage's output impedance would be something lower than 15k ohm.
Even if the output transformer is series feed, the source impedance seen by the output transformer is lower than 15k. It would be the plate resistance of the 26.
If we use the plate resistance of the 26, shown in the data sheet showing a range from 7.3k to 8.9k, of 8k ohms then the output impedance of the output transformer will be more like 320 ohms.
But those are all just guesses.
If I had a complete schematic with voltages and currents, and if I knew which output transformer you were using, I could calculate the output impedance better.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Tre',
How could I get it lower?
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