IK3HIA HOME PAGE Zenith Royal 500E * U.S.A. 1959 Zenith Radio Collection

Zenith Royal 500E - Zenith Radio Corporation - Chicago, Illinois, USA 1959. This later 500 model was introdiced at the 50's end and it proved to be a very sensitive AM broadcasting portable receiver. Due to the dimensions and the weight, in fact it wasn't a shirt pocket radio like the following Royal 50 series, moreover during the early 60's the USA market was flooded with millions of Japanish products like the good Sony TR-610 and next, so the Zenith Corporation had to reduce the price from $75 to $59 to remain competitive. In any case it was really a good receiver with a 8 transistors superetherodyne circuit, an efficent ferrite antenna and a good sound. The power requirements was 4 x 1.5 V size AA normal batteries, or 4 rechargeable mercury AA batteries (with the polarities mounted inverted). The dimensions are: 14.6 x 9.3 x 4.3 cm, the weight without batteries is: 496 g.
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Zenith Radio Collection Click to download the R-500E schematics (219 KB) Click to enlarge Zenith Radio Collection

Zenith Royal 500E - Zenith Radio Corporation - Chicago, Illinois, USA 1959. Questo modello di Royal 500 fu introdotto alla fine degli anni '50 e risulto' un ricevitore a Onde Medie portatile veramente sensibile.  Viste le dimensioni e il peso, esso non era propriamente un ricevitore da "taschino" come invece risulto' la successiva serie Royal 50, inoltre agli inizi dei '60 il mercato USA fu invaso da milioni di prodotti Giapponesi come l'ottimo TR-610 e seguenti, cosi' la Zenith Corporation dovette ridurre il prezzo dagli iniziali 75$ a 59$ per rimanere competitiva. In ogni caso il 500E fu realmente un buon ricevitore con un circuito supereterodina da 8 transistor, una discreta antenna in ferrite e una buona riproduzione audio. L'alimentazione poteva essere fornita da quattro batterie zinco carbonio da 1,5 V del tipo AA oppure, invertendo le polarita' con 4 batterie ricaricabili al mercurio sempre AA. Le dimensioni sono: 14.6 x 9.3 x 4.3 cm, e il peso senza batterie e' di 496 g.

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