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Use of the Philips circle pattern was in its test card broadcasts until 17 February 2001 between 12:00 AM and 06:00 AM (the next day, bTV started 24-hour transmissions), and 2 times a year during transmitter maintenance until 2013. The Philips circle pattern was also used in Hungary, [161] Belgium, [162] [163] Norway, [164] [165] and Sweden. [166]
The AG7400 was launched onto the market in 1961, as a four-octave, 49 keys single manual, beginning with tone C version. Unusually for the time, it offered several audio inputs and outputs. The organ also shipped with a volume pedal and offered three settings--organ, organ with bass keys and single-finger chords.
The 1500 Widelux also used different shutter speeds of 1/8, 1/60 and 1/250 of a second. The F series cover a 140 degree view, whereas the 1500 series covers a slightly wider area (150 degree view-diagonally-140 degr.horizontally). Finally, the 1500 Widelux, like most manual film cameras, has a shutter that must be cocked before the camera will ...