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SUGGESTED SPECIFICATIONS: 

                    projection screen(s), 

                    (H) x                     (W), electrically operated 120 volt (60Hz), not 
more than 2.4 amp. Shall have specially designed motor mounted inside the 
roller, to be three wire with ground, quick reversal type, oiled for life, with 
automatic thermal overload cutout, integral gears, capacitor and an electric 
brake to prevent coasting. To have preset but adjustable limit switches to 
automatically stop picture surface in the “down” position. The roller to be of 
rigid metal. Screen fabric to be flame retardant and mildew resistant fiberglass 
with black masking borders standard. Bottom of fabric shall be formed into a 
pocket holding a metal rod. The ends of the rod shall be protected by heavy-
duty plastic caps. Case to be of wood with metal-lined wiring compartment. A 
section of the bottom of the case shall be a door equipped with hinges so that 

it opens and closes automatically with the lowering and raising of the picture 
surface. When the picture surface is being lowered, the door shall drop open 
by gravity. When the picture surface is being raised, the two ends of the slat in 
the bottom pocket of the screen fabric shall engage two hooks on the door to 
lift it to the closed position where the door will engage a micro switch that will 
cut off the electrical current to the motor. The balance of the bottom of the 
case shall be a second hinged door with manual opening to provide access. 
Hinges shall be mounted to allow matching of the doors to the ceiling. Case to 
be finished with a black primer coat, ready to accept final finish by others. To 
be complete with three position control switch with cover plate. Screen to be 
listed by Underwriters’ Laboratories.

SPECIFICATION DATA

Video (NTSC 4:3) Format Dimensions (2" Standard Black Drop at Top)

Viewing Area (H x W)

Nominal Diagonal

Overall Length of Case

Approx. Ship. Wt.

In.

Cm

In.

Cm

In.

Cm

Lbs.

Kg

43" x 57"

109 x 145

72"

183

731⁄2"

187

72

32.7

50" x 67"

127 x 170

84"

213

831⁄2"

212

80

36.3

57" x 77"

145 x 196

96"

244

971⁄2"

248

90

40.8

60" x 80"

152 x 203

100"

254

971⁄2"

248

91

41.3

69" x 92"

175 x 234

120"

305

1091⁄2"

278

101

45.8

87" x 116"

221 x 295

150"

381

1331⁄2"

339

136

61.7

105" x 140"

267 x 356

180"

457

1571⁄2"

400

164

74.4

120" x 160"

305 x 406

200"

508

1771⁄2"

441

188

85.3

HDTV (16:9) Format Dimensions (2" Standard Black Drop at Top)

Viewing Area (H x W)

Nominal Diagonal

Overall Length of Case

Approx. Ship. Wt.

In.

Cm

In.

Cm

In.

Cm

Lbs.

Kg

45" x 80"

114 x 203

92"

234

971⁄2"

248

91

41.3

52" x 92"

132 x 234

106"

269

1091⁄2"

278

101

45.8

54" x 96"

137 x 244

110"

279

1131⁄2"

288

112

50.8

58" x 104"

147 x 264

119"

302

1211⁄2"

309

122

55.3

65" x 116"

165 x 295

133"

338

1331⁄2"

339

136

61.7

78" x 139"

198 x 353

159"

404

1571⁄2"

400

155

70.3

90" x 160"

229 x 406

184"

467

1771⁄2"

451

188

85.3

Wide (16:10) Format Dimensions (2" Standard Black Drop at Top)

Viewing Area (H x W)

Nominal Diagonal

Overall Length of Case

Approx. Ship. Wt.

In.

Cm

In.

Cm

In.

Cm

Lbs.

Kg

50" x 80"

127 x 203

94"

239

971⁄2"

248

91

41.3

571⁄2" x 92"

146 x 234

109"

277

1091⁄2"

278

101

45.8

60" x 96"

152 x 244

113"

287

1131⁄2"

288

112

50.8

65" x 104"

165 x 264

123"

312

1211⁄2"

309

122

55.3

69" x 110"

175 x 279

130"

330

1271⁄2"

324

133

60.3

721⁄2" x 116"

184 x 295

137"

348

1331⁄2"

339

136

61.7

87" x 139"

221 x 353

164"

417

1571⁄2"

400

155

70.3

100" x 160"

254 x 406

189"

480

1771⁄2"

451

188

85.3

Square Format Dimensions (Screens With 

^

 Have 2" Standard Black Drop at Top)

Viewing Area (H x W)

Overall Length of Case

Approx. Ship. Wt.

In.

Cm

In.

Cm

Lbs.

Kg

50" x 50"

127 x 127

631⁄2"

161

64

29.0

60" x 60"

152 x 152

731⁄2"

186

73

33.1

70" x 70"

178 x 178

831⁄2"

211

83

37.7

84" x 84"

213 x 213

971⁄2"

248

95

43.1

6' x 8'

^

183 x 244

1091⁄2"

278

101

45.8

8' x 8'

244 x 244

1091⁄2"

278

105

47.6

7' x 9'

^

213 x 274

1211⁄2"

309

112

50.1

9' x 9'

^

274 x 274

1211⁄2"

309

119

54.0

8' x 10'

^

244 x 305

1331⁄2"

339

134

60.8

10' x 10'

^

305 x 305

1331⁄2"

339

141

64.0

9' x 12'

^

274 x 366

1571⁄2"

400

164

74.4

12' x 12'

366 x 366

1571⁄2"

400

168

76.2

Boardroom Electrol

®

Automatic Electric Projection Screen Model

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