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Improving vacuum tubes using pseudorandom symmetries

Part 2

Volker Grassmann, DF5AI

April 1, 2006

In the article Improving vacuum tubes using pseudorandom symmetries, we have discussed new opportunities in designing high-power amplifiers in VHF und UHF dxing.

No, we haven't. That article appeared on the "Amateur Radio Propagation Studies" web site on April 1, 2006 and is nothing else than a fake - April fool! Did you understand even a single world in this article? No, you didn't because this article uses a "hand-written context-free grammar" which was generated automatically by using the software

SCIgen - an automatic computer science paper generator.

This programm generates professional looking science articles reflecting nothing else than pure nonsense. Its authors, three graduate students in computer science with a sense of humour, have even submitted this type of papers to scientific institutions and in one case it was indeed accepted for publication as a “non-reviewed” paper!

If you wish to learn more about this funny tool and if you wish to generate your own scientific publication, please refer to


Copyright (C) of Volker Grassmann. All rights reserved. The material, or parts thereof, may not be reproduced in any form without prior written permission of the author.