To: | <amps@contesting.com> |
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Subject: | [AMPS] 3/2 law, DAF, other musings |
From: | Peter_Chadwick@mitel.com (Peter Chadwick) |
Date: | Wed, 22 Mar 2000 08:47:03 -0000 |
Steve says; >Any mathematician out there who can expand (Vg + Vs/us)^3/2 ? There's a graph in 'Care and Feeding' of IMD against grid volts/bias showing the 3rd order dropping to zero at certain power levels. I suspect what is needed is to multiply out (Vg + Vs/us)^3/2 times (sinv1t + sinv2t). One could then differentiate to find the points where the IMD terms go to zero. Just a few sums! Additionally, the 3/2 law is not precise for all tubes - there are variations in it. 73 Peter G3RZP -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm |
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