Long-Tail Pair in general terms

I explain the long-tail pair as a general concept as described in Alan Dower Blumlein's patent. The long-tail resistor basically keeps the triode operation within 1% of the design point by making the current through the tube dependent on the long-tail resistor and not the characteristics of the tube (valve).
Original Work, Copyright 2020 James D. Whiteside, II all rights reserved, For consideration only, no reproduction without prior permission.

[@alanblumlein]

Great explanation of the Long Tailed-Pair Jim

[@deepblueharp]

It is truly an honor to receive a kind comment from Alan's grandson. You also have been blessed with a great legacy.

[@alanblumlein]

@@deepblueharp Thank you for your video Jim. He truly was very special and what a shame he didn't have the opportunity to live longer and bring even more to our lives...

[@citywidetoolguysrus8403]

Patent clerk had to put on the ole glasses to see the - not so evident node on the long tail
part.
A Well done on the production!
Liked and Subscribed

[@SandersAmps]

This goes deep! Thanks.

[@gitarrizmo]

Great playlist.
Could you verify that you mean micro Farad even when you use the milli abreviation as in mF? After all you talk about mu as in μ.
e.g. 100μF read as 100 mu Farad compared to 100 mF also read as mu Farad although SI-convention in metric is milli Farad for mF and microFarad for μF.

[@stephenrioux6821]

A prototype is not needed for a Patent. The rule is ''constructive demonstration'' of the invention's novelty, and its viability as an improvement to existing art. At that point, it's one engineer talking to another.

[@chrisreich40]

That's the way it is *now*. The description given is true for the time discussed.