NAEB Engineering Newsletter (Dec 1955)

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■ 5 - We ! d be happy to include items such as the above or an "Equipment Wanted" column. Our biggest problem is to get the information regard- ING WHAT IS FOR SALE AND WHAT IS WANTED. . NEWSLETTER DEADLINE IS THE. 25th of the month; so get your items in before that DATE. DuMont is now filming the Jackie Gleason series on the Electronicam SYSTEM, USING 35 MM FILM. THE SYSTEM WAS DEVELOPED BY JAMES L. CADDIGAN of DuMont and includes a specially designed Mitchell motion picture CAMERA WITH AN IMAGE ORTHJCON TELEVISION CAMERA IN A SINGLE OPERATING UNIT, AN OPTICAL SYSTEM SPLITS THE LIGHT SO THAT IT IS SHARED BY THE FILM AND ELECTRONIC PICK UP SECTIONS AT THE SAME TIME. Using a TV technique, it is possible to film Gleason*s half-hour pro¬ gram WITH A TWO-HOUR AFTERNOON REHEARSAL PERIOD FOLLOWED BY AN EVENING PERFORMANCE BEFORE A LIVE AUDIENCE. THREE 35 MM CAMERA UNITS ARE USED, PROVIDING SIMULTANEOUS IMAGES ON TV SCREENS AND ON FILM. THE DIREC¬ TOR SELECTS THE SHOTS BY MEANS OF PUSH BUTTONS. By THE USE OF THIS NEWLY DEVELOPED SYSTEM, IT IS POSSIBLE TO RECORD A SHOW IN ONE TENTH THE TIME REQUIRED USING STANDARD MOTION PICTURE TECHNIQUES. Berten Holmberg, of the NAEB Engineering Committee, KUOfvi, and the Twin City Area ETV Corporation, writes that he has recently received infor¬ mation ON THE EXACT PROCEDURES FOR SWEEPING OUT GENERAL PRECISION LAB¬ ORATORY Camera Controls. They are also in receipt of a field modifi¬ cation WHICH CORRECTS A TARGET BLANKING DIFFICULTY WHICH HE STATES WAS ALMOST AN IDENTICAL VERSION OF THE ONE THEY DEVELOPED TO TAKE CARE OF THIS MATTER IN THEIR CAMERA. This brings upa service which we hope all of you are aware of. Most TELEVISION EQUIPMENT MANUFACTURERS FIND IT NECESSARY TO MAKE MODIFICA¬ TIONS TO EQUIPMENT AFTER IT IS IN THE HANDS OF BROADCASTERS. YOU SHOULD AUTOMATICALLY RECEIVE THESE MODIFICATIONS WHICH HAVE BEEN FOUND NECES¬ SARY TO ELIMINATE MAL—FUNCTIONING WHICH MAY NOT HAVE BEEN OBSERVED WHEN THE EQUIPMENT WAS DEVELOPED AND WHICH, THROUGH USE, BECOMES AP¬ PARENT. If YOU ARE NOT RECEIVING OCCASIONAL DATA FROM THE MANUFACTURER OF THE EQUIPMENT YOU ARE USING, WE SUGGEST YOU ASK TO BE PLACED UPON THEIR MAILING LIST TO RECEIVE ANY AND ALL MODIFICATIONS TO IMPROVE THE OPERATION OF EQUIPMENT. RCA publishes a "Technical Bulletin, Maintenance ano Modification notes on RCA Broadcast Equipment." General Electric publishes "Broadcast Equipment Product Service Digest." No doubt DuMont, GPL and other EQUIPMENT MANUFACTURERS PUBLISH OCCASIONAL BULLETINS OF THE SAME TYPE ON THE IR EQUI PME NT. It WILL SAVE YOU MUCH TIME AND EFFORT IF YOU RECEIVE THESE MODIFICATIONS OF YOUR EQUIPMENT, DON * T THROW THEM IN A DRAWER AND FORGET ABOUT THEM. They are issued only to help you get the best from your equipment.