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Allan Adler

Jan 1, 1970
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I'm doing some exercises in R.G.Kloeffler's book, Electron Tubes (1966).
I just tried #16 of Ch.4, p.78, which reads: "Use Figs. 4-10 and 4-27a to
construct the static load line. Locate the Q point and state the quiescent
values of E_b and I_b. What is the value of E_c and i_c?" (Here, I write
an underscore _ to indicate a subscript, so that e.g. E_b is E with b as a
subscript.)

Fig.4-10 is a spec sheet for the 6AV6 twin-triode tube.
Fig.4-26a is a circuit featuring a 6AV6 triode with grounded cathode,
with plate pulled up to 300 V through a resistance of 100 Kohm and where
the grid is connected to ground by a 2 volt battery putting the grid
at -2 V. I had no trouble finding the load line, the Q point, E_b and I_b.

I wasn't able figure out E_c and i_c. Can someone explain how that is done?

Part of my problem is that I don't like reading the explanations in this
book for some reason, even though I'm sometimes able to figure out how
to extract enough information from them to do the problems. I also find the
notation confusing. Also, there aren't enough answers at the back of the book,
so in cases of doubt it is hard to check my work. Even when answers are given,
they often involve reading between scale marks, which leads to subjective and
widely divergent answers. I would be glad to know of a book on electron tubes
which goes into more depth and which explains things more carefully and
assumes more mathematical background, with more attention to consistent
use of terminology and where the index is more useful for locating terms
used in the book.

I picked this one up for 2 dollars about 25 years ago in a pile of publisher's
overstocks at a Barnes and Noble. It is not without merit but I don't want it
to be the only book I can refer to.

Horowitz and Hill, 2nd ed., apparently has nothing on electron tubes.

Ignorantly,
Allan Adler
[email protected]

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* *
* Disclaimer: I am a guest and *not* a member of the MIT Artificial *
* Intelligence Lab. My actions and comments do not reflect *
* in any way on MIT. Moreover, I am nowhere near the Boston *
* metropolitan area. *
* *
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