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Link to the University of Exeter Back to Strand Archive home page Patt.764 & Patt.763

Successor to Patt.263/264

Patt.764
(above) Patt 764


(above) Patt 763

Beam Spread:
Patt. 764 Bifocal, 763 : Cut off 20° max. ½ peak 14°, 3m spread at 8.5m throw.
Patt. 764W : Cut off 28° max. ½ peak 20° 3m spread at 6m throw.
Lamphouse: Pressed steel with bottom-hinged gate and lens tube; rear handle fitted.
Fork: Mild steel, reversible, with friction disc tilt clamp and three-eighths inch Whitworth bolt and wingnut.
Lampholder: GX9.5 with p.t.f.e. wiring to internal terminal block and 1m external length of 3-conductor sheathed, heat resisting cable.
Reflector: 160mm diameter faceted ellipsoidal.
Gate assembly: Four hard-edge and four soft-edge beam-shaping shutters for Patt.764, 764W; four hard-edge only for Patt.763; all with external heat-resisting knobs; also gate runners.
Lens: Twin 150mm diameter plano-convex in sliding, but captive, die-cast lens tube.
Colour Frame: Integral runners in die-cast lens tube, one 190mm square metal frame supplied.
Lamps: 1000W max. GX9.5 base. 55mm l.c.l. class T/9 recommended for stage use.
Accessories:
12-leaf iris diaphragm, 23 625 04
Additional metal colour frame, 27 754 00

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