FIELD: cathode-ray tubes. SUBSTANCE: device is designed as V-shaped symmetrical member which is made from elastic metal ribbon which horn angle at vertex is 60-90 degrees. Sides of clamp has two elbows. First one with respect to vertex is directed outwards, second one inwards. Areas between elbows of sides are first bearing parts of clamp. Ends of sides of clamp are bent outwards providing U-shaped surface. Their faces serve second bearing parts of clamp. EFFECT: increased functional capabilities. 9 dwg
