This Hi-Delity 6T-330 was manufactured in Japan by Constant circa 1960. Constant was a brand name used by Fuji High Frequency Radio Lab, Co, Ltd. This company may have been a subsidiary of Fuji Electric Industry Co, Ltd founded in 1923. Constant designed and manufactured some highly collectible and unusual transistor radios. Constant also made radios under the brandnames Vulcan, Windsor, Barlow, Minute Man, Supre-Macy, Personna, Morse, Crestline, AFCO, Fuji, Hi-Fi, Sabre and probably others.
Other than that I know very little about Constant.
This Hi-Delity features a reverse-painted tuning dial behind clear plastic. The white plastic behind the tuning dial is lightly corrugated. The red volume knob stands out nicely against the clear plastic cabinet. It can also be found branded as an Imperial, Crestline, Morse and Jupiter, all with the same model number of 6T-330. There is also a Supre-Macy 6T-330 that has a mostly under-painted face with the tuning dial visible behind a clear plastic chevron.
It was distributed in America by Petely Sales Corporation, 800 Park Avenue, South New York.
It is very small measuring just 90mm x 60mm.
This Hi-Delity comes with a luxurious hinged wooden gift box! It also comes with a leather case, leather earphone case, earphone and instructions.
This 6T-330 contains 6 Toshiba transistors, a Toshiba diode and another electrical thingy branded ‘Toshiba’…
