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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: ping deathtube 667 re: starved filaments posted by Tre' on April 10, 2014 at 17:28:12:
Take a constant current load at 2ma and look at which has more uniformly spaced lines. this represents amplification.
now look at the slope of each line at 2ma and this is the Rp. Again which set of curves have the least amount of variation.
since Gm-Rp/mu, the more consistent Rp and mu remain the more consistent Gm will be.
Of course you do need to pay attention to where you operate things since you now have to avoid a "knee" at both low and high current but it can be easily seen that the starved tube is more linear.
dave
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Follow Ups
- RE: ping deathtube 667 re: starved filaments - dave slagle 21:47:47 04/10/14 (2)
- Thanks Dave - Tre' 08:36:37 04/11/14 (1)
- RE: Thanks Dave - Tre' 14:00:20 04/11/14 (0)
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