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RE: Any approach we can make 6h30 warmer and richer?

"The Rp of 6h30 is 820 ohm"

At what operating point?

Yours?

Va Ia Vg1 Gm Mu Ra (Rp)(ohms)
50 5 -2.8 7.1 15.2 2100
50 10 -2.3 9.8 15.9 1600
50 20 -1.5 12.3 16.3 1300
90 10 -4.7 8.4 15.3 1800
90 20 -3.9 11.7 16.0 1400
90 30 -3.1 13.3 16.2 1200
120 10 -6.5 7.6 14.9 2000
120 20 -5.6 10.9 15.7 1400
120 30 -4.8 12.9 16.1 1300
120 40 -3.9 13.3 16.3 1200
180 10 -10 6.5 14.5 2200
180 20 -8.9 10.0 15.3 1500
180 40 -7.1 13.3 16.0 1200
250 10 -14.4 5.8 14.4 2500
250 20 -13.2 8.7 15.0 1700
250 30 -12.1 11.0 15.4 1400
250 40 -10.5 12.5 15.8 1300

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

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