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The projector is built around a 250 x 250 mm aperture Fresnel lens, mounted on a sturdy metal body. The tilting projection head is carried on a square section column and is provided with rack and pinion arrangement for focussing. With a projection lens of f-254 mm providing a projection distance is 1-3 meters. With a 240V-60W projection lamp, having an electronic control to adjust light intensity and also to interlock with the one-off switch to protect against any voltage surge while switching on. An efficient blower cooling system keeps the transparency stage cool. The top cover is designed to open only after disconnecting power supply, thus ensuring safety against electric shock.The Parts are detachable for folding.Dimensions 305 x 305 x 285 mm.Complete with cellophone roll attachment, writing pack, vinyl cover etc.

With projection lens of f-300 mm providing projection distance 1-4 meters. Twin 24 V, 250 W halogen lamps with a shifter assembly to change from one to the other. High -low intensity switch is provided for lamp intensity. Power is automatically cut off when top cover is opened. Folding (detachable parts) with handle to carry around. Dimensions 340 x 310 x 250 mm.. Complete with cellphone role attachment, writing pack, vinyl cover etc.

Mounted on transparent covered box. Diagram provide with three different color four mm sockets for easy identification of terminals.

Thermostatically controlled. Double walled, with cups and sleeves for glass tubes.

One side of the model clearly shows the oral groove and their continuation into the gullet and the other side shows the details of the internal structure, mounted on base, with key card.