NAEB Engineering Newsletter (Aug 1955)

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- 9 - TV Technical Tips No. 11 August , 1955 By Cecil S. Bidlack, NAlB TV Engineer Elsewhere in this issue of the Ne wsletter will be found a list of the RECIPIENTS OF THE TV ENGINEERING WORKSHOP GRANTS. IN THE JULY NEWS ¬ LETTER WE INCLUDED A BRIEF RESUME OF THE PROGRAM OF THE WORKSHOP. 1/E HAVE LITTLE TO ADD TO THIS RESUME EXCEPT TO SAY THAT AT THIS DATE MOST OF THE PROGRAM DETAILS OF THE WORKSHOP HAVE BEEN SETTLED AND CONFIRMED, To US THE PROGRAM SEEMS TIMELY, INFORMATIVE AND VERY WORTHWHILE. Along with the resurgence of radio, the NAEB Network is moving ahead TECHNICALLY. HERE AT NETWORK HEADQUARTERS WE ARE INVOLVED IN THE PROCESS OF CHANGING OUR DUPLICATORS OVER FROM HALF-TRACK TO FULL-TRACK RECORDING HEADS. THIS SHOULD BE GOOD NEWS TO SOME OF OUR NETWORK STATIONS WHO HAVE ENCOUNTERED DIFFICULTIES IN PLAYBACK. At THE PRE¬ SENT TIME, EIGHT OF OUR TWENTY-TWO DUPLICATING CHANNELS HAVE BEEN CONVERTED TO FULL WIDTH HEADS. The REMAINDER OF THE CHANNELS WILL BE CONVERTED AS SOON AS THESE HEADS ARE RECEIVED FROM OUR SUPPLIER. SO IF YOU NOTICE SOME CHANGE IN RECORDING LEVEL FROM TAPE TO TAPE, IT IS DUE TO THE FACT THAT ONE TAPE MAY BE FROM A HALF WIDTH CHANNEL, THE NEXT MAY BE FROM A FULL WIDTH CHANNEL WITH CONSIDERABLY HIGHER OUTPUT. AS THIS IS BEING WRITTEN, ChAMPA I GN-UrBANA IS IN THE SECOND WEEK OF A PERIOD OF HIGH HUMIDITY. SINCE OUR QUARTERS ARE NOT AIR CONDITIONED, THESE ARE TRYING DAYS IN THE "BACK ROOM.” THESE ARE THE DAYS WHEN WE WISH WE COULD PUT EVERYTHING ON NEW TAPE, SOME OF THOSE RETURNED TO US BEING VERY STICKY. THE STICKY ONES DRAG ON THE TAPE GUIDES AND SOMETIMES BREAK; MUSIC WOWS, AND MUCH TIME IS LOST. Vi E HAVE HOPES OF GETTING SOME RELIEF EITHER THROUGH AIR CONDITIONING OR DE-HUMIDIFYING. Whatever is done will probably be too late for this season. Through it all, Glenn Blackburn, our Network Production Supervisor, CHECKS AND RE-CHECKS OUR OUTPUT, ENDEAVORING TO MAINTAIN A QUALITY STANDARD FOR THE NETWORK. The NAEB Engineering Committee too, is embarking on a quality control PROGRAM FOR THE NAEB NETWORK. SOON THOSE OF YOU FURNISHING PROGRAMS for the Network will be asked to submit a test tape which Ed Kratt of WNYE HAS volunteered to test. From the information which you re¬ cord, HE WILL BE ABLE TO CHECK HEAD ALIGNMENT, FREQUENCY RESPONSE, HARMONIC DISTORTION, NOISE AND TAPE SPEED. NETWORK HEADQUARTERS HAS ORDERED A LOW DISTORTION AUDIO OSCILLATOR AND A NOISE AND DISTORTION