Sony Corporation, Tokyo
ICF - 7600
überarbeitet am 30.10.2010
The Sony ICF-7600 apearing in the year 1978 was a big step in the design of miniature
travel shortwave radios. Until the late seventies, someone interested in buying
a travel multiband radio expected a large and heavy portable receiver with many
knobs and long antennas - the pocketbook sized ICF-7600 had a completely different
design: the most popular shortwave bands, mediumwaves and the FM band are spread
over a vertical analog dial. This offered only mediocre dial accuracy, but was much
better then all the 5 mm bars with the indication "49 m band" found on the
commonly used domestic radios. You could really expect to hear the major international
shortwave boradcasters everywhere in the world, on the mountain tops, during
desert trips and on the beach.
The Sony ICF-7600 was the first portable multiband shortwave radio with the typical layout later found on very many shortwave portables. The set is 120 x 80 x 35 mm wide and has a weight of 500 g, the size of a murder mistery pocketbook which easily fits in a coatpocket.
The left part of the receiver front is taken by the quite flat speaker.
Most of the right half is taken by the dial window with it's vertical frequency
dials of the spread 75, 49, 31, 25 and 19 m shortwave bands, the dials for
mediumwaves and the FM broadcast band are printed on the cabinet. In the original ICF-7600,
the FM broadcast band extends from 76 to 108 MHz, in contrast to the variant
ICF-7600W sold in Europe, which only covers the 88 - 108 MHz range used in Europe
and omits the frequencies above 76 MHz used for FM broadcasts in Japan.
At the left small face of the radio, You find a 6V DC jack to connect the external power supply and jacks for earphones and a cassette recorder, the battery compartment is found at the back, the ICF-7600 needs three UM-3 batteries.
Operating the ICF-7600 is absolutely easy: press the SW button to switch
the radio on and to select the shortwave range, then use the sliding switch to select
the desired shortwave band, position number 2 stands for the 49 m band. On the
bandspread dial, 8 mm correspond to 50 kHz, so You can "guess" a frequency
within 10 kHz, in the 19 m band, it's 8 mm for 100 kHz, so the dial resolution
is about 20 kHz. When the radio was, this was much better then everything found
on the dials of domestic radios. A frequency accuracy of 5 kHz or better could
only be found on (semi)professional grade tabletop radios and some high grade
portable receivers with a turret tuner arrangement like the Sony CRF-5090, the Grundig Satellit
receivers or some Nordmende Galaxy sets.
© Martin Bösch 20.5.2005