Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1974-11-06
1976-08-10
Tubbesing, T.H.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
315370, 315393, 315410, 335214, H01J 2970, H01H 100
Patent
active
039744213
ABSTRACT:
Interference oscillations in the frequency ranges around 0.2 MHz and 1 MHz are eliminated in a deflection coil by the provision of an additional circuit element. The additional circuit element can be formed by an additional electrically conductive foil which is connected to the current supply side of the line coil sections or by a capacitor which connects this supply line to the central contacts of the series-connected frame coil sections. The connection of the coil sections with respect to each other should usually be adapted to the winding sense of the coil sections so as to ensure proper elimination of the interference oscillations.
REFERENCES:
patent: 2689923 (1954-09-01), Janssen
patent: 2882446 (1959-04-01), Janssen et al.
patent: 3162791 (1964-12-01), Gostyn
Buczinski S. C.
Steckler Henry I.
Trifari Frank R.
Tubbesing T.H.
U.S. Philips Corporation
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