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Contents of the magazine
Sommaire général
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Contents du Bulletin de l'AEA série normale 112
<< Previous April-June 2003 Next >>
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Technical pages :
Le coin de la superréaction by C. Maennel.
Un montage de superréaction à transistor
Readers are invited to send short papers related to schematics, comments, history, know how... on the subject of superregeneration. This time a recent realization with transistors is shown.
Haut-parleur Poly-Planar
Sometimes inventor's brillant ideas have no conformation. Why so?

Trick :
ECLL 800 by R. Fürst.
Eviter l'usure prématurée de la ECLL 800

History of men :
Eugène Aisberg 1905-1980 by C. Maennel.
This article is a short biography of Eugène Aisberg, who was actively implied in the developments of the radio technology. He is particularily known as the founder of several radioelectronic journals and as the author of numerous books. His style and the way he explained how radio works made him one of the greatest popularizers of radio and television.
John Logie Baird, a life by P. Demerseman.
A comprehensive analysis of Baird's life, this book tackles all his inventions and also the problems he encountered during his pre-television period and after, from 1923 to 1946. Profusely referenly and well illustrated it is an exhaustive treatise on the birth of TV, in addition to Baird's biography.

History of techniques :
Triode ou pentode ?... Telle est la question ! by R. Houzé.
At old times of wireless, only triodes were available. It was a challenge to operate all stages of a set with triodes.

The HAM page :
Le H.R.O by J. Revidon.
Some collectors knows very well this traffic receiver coming from USA, extensively used before and during WW2. Hereafter is offered a detailed description of this device.

Theory and practice :
La normalisation de la fréquence intermédiaire dans les superhétérodynes by Michel Adam.
Since the fourteens, the question of the frequency value for intermediate frequency in superhet receivers has received its answer. But it is always of the day to know the reason of the frequency choice we make use of.
Ampli monocanal à triodes by P. Montigny.
Description of an audio-frequency HI FI amplifier with a single power output triode tube for each channel.

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