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Superheterodyne transistor radio
With black plastic cabinet (top picture), wite plastic cabinet (lower picture) and gold coloured front. At the top is an on/off/volume knob; the tuning knob is on the right. An additional antenna connection is arranged on the upper side of the cabinet, on the left is a connection for an earplug.
The little radio was launched in 1957 and was made until 1965. The radio was very successful at that time and was of pretty good quality. It takes its name from the brightest star in the constellation of Virgo.
Transistors in the black radio:
Hitachi 2SA84, 2SA13 (2x), 2SB76, 2SB78 (2x) and the germanium diode 1N34A
Transistors in the white radio:
Hitachi 2SA15, 2SA12 (2x), 2SB75, 2SB77 (2x) and the germanium diode 1S80.
It uses 4 1.5 volt penlight batteries.
The radio receives medium wave only. The two red triangles behind the transparent tuning knob recall the period of the Cold War. They mark the wavelengths of US radio stations that would be used to inform the people in case of a Russian atomic atack. (Listen to a Conelrad test broadcast from the 1950s here). The frequencies 640 and 1240 kHz were specially designated for this purpose by the United States Civil Defence Administration in the period 1953-1963.
The receiver was made in a number of colours. Variants are the vertical 608, the Spica Super 7 with 7 transistors and models with type names like "Holiday", "Spiket DeLuxe" and "Impala".
Data
Serial number: 680327
Dimensions (whd): 12.7 8.5 3.5 cm
Made in: 1958
Purchased in: 2015
Weight: 440 grams (incl. batteries)
User manual Circuit Conelrad brochure 1957

What was broadcast in 1958?

 

Listen to "All I have to do is dream" sung by The Everly Brothers, recorded in 1958

A look inside (black version)
A look inside (white version)

Protection bag

Deze pagina is voor het laatst bijgewerkt op maandag 25 oktober 2021