ETC RT142 Data Sheet

®

Source Four® jr 36°ETC

Ellipsoidal Series

S P E C I F I C A T I O N S

PHYSICAL

• Rugged die cast aluminum construction

• 20 gauge stainless steel shutters in a bi-plane assembly

• Interchangeable lens tubes with smooth–running teflon
guides provide three user-fit field angle options

• High impact, thermally insulated knobs and shutter handles

• Two accessory slots, and a top mounted, gel frame retainer

• Steel yoke with two mounting positions

• Positive locking, hand-operated yoke clutch

• Slot for stainless steel patterns

• Slot with sliding cover for motorized pattern devices or
optional iris

• UL and cUL Listed

ELECTRICAL

• 115-240V, 50/60Hz

• High temperature 3–conductor 36” leads in a glass fiber
outer sleeve

• Supports ETC Dimmer Doubling™ technology

LAMP

• HPL — compact tungsten filament contained in a krypton­filled quartz envelope (see table for suitable lamp types)

• 575W Maximum

• Integral die cast aluminum heat sink lamp base

S P E C I F I C A T I O N S

OPTICAL

• Optimized optical system for efficient
photometric performance

• Projector-quality, high contrast aspheric lens

• Faceted borosilicate reflector with dichroic cold mirror coating
removes greater than 90% infrared radiation (heat) and
reflects greater than 95% of visible light

• Reflector secured with anti-vibration shock mounts

• Tool free, positive locking X, Y and Z lamp centering
adjustments, unaffected by relamping

• Beam edge continually adjustable hard-to-soft

• Interchangeable lens assembly kits permit selection of 26°,
36°, and 50° field angles, and 25°-50° zoom range

O R D E R I N G I N F O R M A T I O N

Source Four jr

MODEL DESCRIPTION

436J 36˚ Source Four jr ellipsoidal (black)

436J-1 36˚ Source Four jr ellipsoidal (white)

ETC Source Four jrs are supplied with C-clamp, color frame and 3’ (96cm) leads as
standard

Connector Designation

Use Suffixes below to specify Factory–Fitted Connector type

MODEL DESCRIPTION

A Parallel-blade U-ground connector

B Two-pin and ground, 20 amp connector

C Grounded, 20 amp, twistlock connector

M Dimmer Doubling Connector (NEMA L515P)

See back page for Source Four jr Accessories

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ETC

®

Source Four® jr 36°

Ellipsoidal Series

P H O T O M E T R I C S

Photometric data below is measured with an HPL 575W/115V 300 hr lamp. To convert data when using any other HPL lamp, use the lumen or
candela multiplying factors (Lm MF or Cd MF) for that specific lamp. These multiplying factors are listed in the Lamps table in this datasheet. For
lumen data, multiply by the Lm MF. For candela or footcandle data, multiply by the Cd MF.

28˚

Throw Distance (d)

Field Diameter

Illuminance (fc)

Illuminance (lux)

For illumination with any lamp, multiply the candlepower of a beam spread by the
multiplying factor (mf) shown for that lamp.

To determine illumination in footcandles or lux at any throw distance, divide
candlepower by distance squared.

For Field diameter at any distance, multiply distance by .66

For Beam diameter at any distance, multiply distance by .49

10’

3.0m

6.6’

2.0m

425 189 106 47

4,573 2,033 1143 508

15’

4.6m

9.9’

3.0m

20’

6.1m

13.3’

4.0m

37˚

Beam Angle

30’

9.1m

19.9’

6.1m

Iso-Illuminance Diagram

Y

Field Angle

Source Four jr 36˚(cosine)

Degree Candela

36°

Metric Conversions: For Meters multiply feet by .3048

42,490 7,300 4.920 44.2% 12.7

For Lux multiply footcandles by 10.76

Field

Lumens

Cosine Candela Plot

Beam

Lumens

Efficiency

Lumens

per

watt

10%

X

Candela

50%

Complete IES photometry data files (LM-63-02 format) may be downloaded from the ETC website.

Go to http://www.etcconnect.com/downloads.asp

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Degrees

®

Source Four® jr 36°ETC

Ellipsoidal Series

L A M P S

To determine Candela (Cd) or Lumens (Lm) for any other HPL lamp, multiply the Candela or Lumen value by the appropriate multiplying factor
(CdMF or LmMF) shown for that lamp in the table below.

Initial

ETC Part # Lamp Code Watts Volts

RT113 HPL 575/115** 575 115 16,520 3,250 300 1.00 1.00

RT114 HPL 575/115X 575 115 12,360 3,050 2,000 .64 .71

RT142 HPL 375/115 375 115 10,540 3,250 300 .84 .64

RT143 HPL 375/115X 375 115 8,500 3,050 1,000 .58 .48

RT115 HPL 575/120 575 120 16,520 3,250 300 1.00 1.00

RT171 HPL 575/120X 575 120 12,360 3,050 2,000 .64 .71

Lumens

Color

Temp. K

Average

Rated Life

36°

Cd MF

36°

Lm MF

RT112 HPL 550/77* 550 77 16,170 3,250 300 1.02 .98

RT117 HPL 550/77X* 550 77 12,160 3,050 2,000 .66 .73

RT129 HPL 575/230** 575 230 14,900 3,200 400 .62 .69

RT138 HPL 575/230X 575 230 11,780 3,050 1,500 .40 .49

RT154 HPL 375/230X 375 230 7,800 3,050 1,000 .34 .36

RT130 HPL 575/240 575 240 14,900 3,200 400 .59 .69

RT139 HPL 575/240X 575 240 11,780 3,050 1,500 .38 .48

RT155 HPL 375/240X 375 240 7,800 3,050 1,000 .34 .36

Source Four jr is rated for 575W maximum.

*77 Volt HPL lamps are for use with ETC Dimmer Doubling technlology only.

**Photometric data was prepared using a production fixture and the Prometric CCD measurement system. Fixture adjusted for cosine distribution and tested with calibrated
lamp at rated voltage. All data normalized to nominal lamp lumens in accordance with IES LM-73-04. Testing performed at ETC West, Hollywood, CA. All other multiplying
factors extrapolated from primary test data.

For links to photometry file downloads (IES LM-63-02 format) go to www.etcconnect.com.

HPL Specified Tolerances: Watts +/- 5%, Lumens +/-7%, Average life +/-10%, Color Temperature +/- 50K

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®

Source Four® jr 36°ETC

Ellipsoidal Series

P H Y S I C A L

13.7”/ 348mm max

10.6”/ 269mm min

8.8”/ 224mm max

6.1”/155 mm min

6.9”

175mm

19.3”

490mm

18.5”

470mm

O R D E R I N G I N F O R M A T I O N

Continued from front page...

Source Four jr Accessories

MODEL DESCRIPTION

450JL 50˚ jr lens assembly

436JL 36˚ jr lens assembly

426JL 26˚ jr lens assembly

400JZK Source Four jr Zoom upgrade kit*

400CC C–clamp (included)

400SC Safety cable

400JRS Drop-in iris

400CF Colorframe (6.25”) (included)

400DN Donut (6.25”)

400TH Top hat

400HH Half hat

400GE Gel extender

400PH-M Pattern Holder (M size)

Note: For colors other than black and white, please call ETC.

* Converts any Source Four jr to a Source Four jr Zoom

7.0”

178mm

9.7”

246mm

Source Four jr Weights

*

MODEL WEIGHT SHIPPING WEIGHT

lbs kgs lbs kgs

436j 10 4.5 16.5 7.5

*Includes 2.3 lbs for C-clamp

Corporate Headquarters • 3031 Pleasant View Rd, PO Box 620979, Middleton WI 53562 0979 USA • Tel [phone] • Fax [phone]
London, UK • Unit 26-28, Victoria Industrial Estate, Victoria Road, London W3 6UU, UK • Tel [phone] • Fax [phone]
Rome, IT • Via Pieve Torina, 48, 00156 Rome, Italy • Tel [phone] • Fax [phone]
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Hong Kong • Room 1801, 18/F, Tower 1 Phase 1, Enterprise Square, 9 Sheung Yuet Road, Kowloon Bay, Kowloon, Hong Kong • Tel [phone] • Fax [phone]
Web • www.etcconnect.com • Copyright©2010 ETC. All Rights Reserved. All product information and specifications subject to change. 7062L1008 Rev. E Printed in USA 12/10

Source Four products are protected by one or more of the following
patents:

U.S. USRE36,3316, US5,345,371, US6,092,914 and

US5,775,799

U.K. GB0592589, GB0673488, 99930527.9*

Germany DE0592589, GB0673488, 99930527.9*

Japan JP2,501,772

* European patent application number

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