[Dept. of Computer Science]

Nanaola 8NR-102

Our Department and University.
See my other radios too; here is the next set.

This radio looked so deplorable that I could buy it for 1 guilder; it plays very nicely though.

Data for this radio
Type Nanaola 8NR102, series number 2121132
Band MW (535-1605 kHz)
Cabinet Black plastic, metal speaker grille
Size 22x11x5.5 cm
Semiconductors 8 transistors
Controls Tuning, volume/off
Power Batteries 6V (4x C-cell)
Produced Japan, 1964.

Toshiba radios

This radio was sold under different brand names: Ross, Skyliner, and Nanaola; it was manufactured by Toshiba. It has a radio-frequent amplification stage (triple-gang tuning condenser) and performs quite well. The presence of a phono input, two earphones jacks (1 cuts out the internal speaker, the other doesn't), tuning reduction gear and very good audio indicates the effort to market it as a better class portable than the common 6 transistor cheapos of that era.

Fred Mason wrote me that Toshiba sold radios under many brand names, including Marconi, Nanaola, Belair, Penneys, MMA, Trancel, and also, how Toshiba-made radios can be recognized:
1. 6- and 7-digit part numbers all over;
2. Toshiba transistors;
3. yellow or green shielding tubing on component leads;
4. often twin earphone jacks;
5. sometimes funny switches, like sensitivity or tone.

The CONELRAD Defence System and Marking

In the early fifties the American military became obsessed by the fear that the Soviets would nuke the States by missiles navigating using the many American MW broadcasting stations. As a counter measure, it was decided that in case of a nuclear attack all stations would abandon normal operation, and change to one of the frequencies 604kHz or 1240kHz to inform the public about measures being taken. This system of CONtrol of ELectromagnetic RADiation was called CONELRAD.

As part of the system it became obligatory for all radios sold in the US after 1953, that the CONELRAD frequencies 640/1240 kHz were marked with triangles on the dial. The triangles were referred to as CD marks, for Civil Defense. We find the tringles on American radios from that year and later, but also on portables produced in other countries but marketed in the US. The obligation was lifted in 1963, but the markings are found incidentally on later radios, including this one.

Gerard Tel, gerard@cs.uu.nl