618
Item nr.


Luijckx, J. Superheterodynes (book)

War time explanation of conversion circuits.
Data for Luijckx, J. Superheterodynes
ProductionBelgium, 1943.
Cabinet Size 14x22x1cm. Weight 112 pages.

The Design

This book was published in Antwerp in 1943, a time when only few radio's were produced for the consumer market. The author is given as J. Luijckx, Radiotechnicus, and the publisher as "De Techniek - Antwerpen". It explains how superhet receivers work, giving numerous examples of circuits. The circuits are all very interesting and their description is entertaining, but to my surprise I found a lot of circuits rarely actually found in radio's. I know that Belgian manufacturers used, more often than Dutch ones, American parts, so it is not strange to explain the pentagrid. But the Harmonic Autodyne, come on!

There are also a lot of additional circuits, like for AGC, Bandwith control, automated frequency correction, dynamic compression or expansion, etc., hardly ever found in consumer sets, but not a single word on double conversion. In the end we find a list of almost all American and European radio's with their I.F.

Obtained11/2025 from Leo van Vreeswijk.
Condition8.
Value (est.)2,2€.

This Object

The booklet is complete, reasonnably neat for an 80-year old document, and has no writings.

Luijckx also wrote about television, back in 1943.

Part of Gerard's Radio Corner.
Generated by SiteBuilder on 25/11/2025 by Gerard