Technology

This radio SF-20 was sold by Sanyo in 1958.
Tubes are used in it.

This is a manual of television 19SG that tubes are used in it.
The circuit was distributed to shops.

This radio casette recorder RQ-540 was sold in 1973.
Transisters are use in it.

This is a calculator HOMELAND 8008 that was sold in about 1978.
IC or LSI are used in it.

This is a clock Seiko DP650 using syncronous motor.

Split-flap display was used also in station or airport.

ASA has been used for film sensitivity.

Record disk was used to listen to music.

Z80 micro processor was sold in 1976.
This is used for personal computer and other systems.

Mitsubishi Pajero was sold in 1982 and was popular.
This photo is a plastic model.

Solar panel is used for calculators and watches or others.
This is a digital multi meter Sanwa CDS-820 that was sold in about 1984.

Data was saved in floppy disks.

Double casettes recorder was popular.
This is Victor RC-W66 that was sold in about 1987.

This is a portable casette player Toshiba Walky KT-GS5 that was sold in about 1987.

PLL synthesizer can select frequency directly.
This is a transceiver for amateur radio Yaesu FT-728 that was sold in 1988.