[AMRadio] GG 813 Linear in GE Ham News -12AT7 12AX7

W5OMR/Geoff w5omr at satx.rr.com
Sun Oct 2 11:05:39 EDT 2005

Patrick Jankowiak wrote:

> don't laugh too hard, In the ARRL handbook it claims 8 watts audio 
> from an 12AX7 in zero bias class B push pull into 8000 ohms. I have 
> never understood that one, if you look at the currents stated in the 
> book, they seem pretty high for the tube.
> PJ 

Oh, I don't know...

250Ep into 8kOhms is 0.03125A (around 30mA)
250Ep * 30mA Ip = 7.8125W


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