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1947-48 Theatre Catalog, 6th Edition, Page 392 (378)

1947-48 Theatre Catalog, 6th Edition
1947-48 Theatre Catalog
1947-48 Theatre Catalog, 6th Edition, Page 392
Page 392


1947-48 Theatre Catalog, 6th Edition, Page 392

a

AWSOURCE OF RECTIFIED POWER

FOR MOTION PICTURE PROJECTION



RUGGED METALLIC DISC TYPE . . . NO TUBES USED

. leCSzC$9 SIX-PHASE theatre rectitiers represent an im- . V'CSKCT SIX-PHASE rectifiers are of the rugged metalportant step forward in motion picture projection. Iic disc type, using no tubes. They are available for Smoother, more brilliant light results from the SIX- both small and large theatres. (See table below.) PHASE llFULL-WAVET RECTIFICATION PRIN- They are simple to installesimple to operate. CIPLE USED. Disturbing flicker is eliminated by 0 Unusual flexibility of operation through simplified, delivering 12 impulses per cycle instead of the Con- pro-arranged wiring is obtained by using the TYPE ventional 6 for ordinary 3-phase full-wave rei-tifiers. 0C7 TRANSFER SWITCH for the 0H,, series and the

0 These new rectifiers are the result of over 18 years of TYPE V'Dii TRANSFER PLUG for the PMHT series. research and development in eler-trical rertifiers by O iiCSzCi1 SIX-PHASE rectifiers operate from standard McColpin-Cllrislie Corp., 3-phase supply line,

0 Leading studios, theatre circuits and independent: 0 Each model is approved Iny the Underwriterf Labor.

are using these rectifiers. They agree that Six- amries,

Phase rectification gives a superior quality of

light and represents a highly perfected source of

DC. power for are lamps.





G 3? s

i E

REAR VIEW TYPE MH 2345 ' Showing Type 71),, Transfer Plug 336:.

wliii'h is included in this model.

i



"MH" SERIES

TYPE 6367 "START-STOP" TYPE 6805 SWITCH RELAY TYPE 6806



TOGGLE SWITCH



No. Used D. C. TYPE NO. Per Pair Voltage of Lamps Ranges

L 3 Phase ' Ttylgle]; A. C. volts Recommended Accessories

50/50 cycles Per Pair of Rectifiers

2 26-30 1 KW. 208 230" 2 #6805 Relays it needed / 2 #6806 Toggle Switches ior Above



, s H40-70 34-40 2223." 208/230"



2 #6387 uStart-Slop" Switches

Low 34-40 77 i A V ' Suiarexio'?

/ Equiv. 1

'. Med, 44.50 Special Application " 208/230" 7 H r, H ( Spots"

H1, 5/9 5r '5"; ("Ettects"

("StereoJ'

Type "C" Transfer Switch 2 #6367 "Stari'Stop" Switches

{6 6. 7 m/m Suprex or (7 6, 8 m/m Equiv.

Special Application ,. 1 TYPE "C" Tldnder Switch {/au 6 5, ("spasm 203/230





2 636'] "St t-St " S 't h ("Huectsu # ar op W] C es







'Low voltage tap with range oi 26-30 volts available Ior 1 KW arc operation at 7% additional cost. "It is important that A. C. voltage be specified. Can be furnished for other A. C. voltages than those shown.

Distributed by

"Anon-Ail. , *,

. ohm... .0 Manualushun.alumina-it; 1 t

Manufactured by

McCOLPIN-CHRISTIE CORP., LTD. Los ANGELES 37, CALIFORNIA







A UNIT OF NATIONAL STANDARD PROJECTION SYSTEM

THEATRE CATALOG 1947-48

I'n jurililulr' im/ui/v n' the ubnm'. plr'uxr' mrnlinn I/LL' Inhmu' and page number.
1947-48 Theatre Catalog, 6th Edition, Page 392