[ARC5] 6AQ5 triode connection data

J Mcvey via ARC5 arc5 at mailman.qth.net
Wed Oct 15 10:55:12 EDT 2014


http://www.r-type.org/pdfs/6aq5el90.pdf

This shows a plate resistance of 1970 ohm for a 6aq5 triode connection.
So, the loaded Q will be about half of the original?
I'm not sure what the output tank circuit looks like, but maybe you can coax more power from it by adjusting it for a better match to the load?
Also, I found reference to a "grid stopper" resistor ( 100 ohms)  that is used in triode connections to eliminate oscillations.
Perhaps that is what you need to use the "four digit" version?

There is very little info out there on the BC230 that I could find. I don't have one, nor have I ever seen a working one in person, but the retrofit intrigues me for some reason!
I'll keep an eye out for these in the future.


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