BROADCAST TRANSMITTERS                          

DEDICATED TO THE CONTINUED SUPPORT OF RCA BROADCAST TRANSMITTERS

KITS ISSUED EXCLUSIVELY FOR HIGH BAND TRANSMITTERS.

MI-563393-1  HIGH BAND LEAD SCREWS SUPPORT.    ISSUED - 8/2 8/80

PURPOSE - TO PROVIDE MECHANICAL SUPPORT TO THE TOP OF THE PLATE TUNING DRIVE LEAD SCREWS.  THE LEAD SCREWS, BEARINGS, SUPPORTS AND BUSHINGS WERE ALL CHANGED OUT FOR NEW ITEMS.

MI-563393-2  HIGH BAND R.F. CAVITY WALL SUPPORT KIT.    ISSUED - 10/22/80

PURPOSE - THIS KIT IS DESIGNED TO ADD SUPPORT AND REDUCE DEFLECTION OF THE OUTSIDE CAVITY WALLS. ONE SUPPORT WAS ADDED ACROSS THE FRONT AND ONE DIAGONALLY ON EITHER SIDE.

MI-563393-3 HIGH BAND SYNTHESIZER TEMPERATURE COMPENSATION.    ISSUED - 2/9/81

PURPOSE - THIS KIT MODIFIED THE VISUAL VCO AND VISUAL IF SYNTHESIZER TO MAKE THEM LESS SUSCEPTIBLE TO EXTREME TEMPERATURE CHANGES.  TWO CAPACITORS WERE CHANGED IN EACH.

MI-563393-4 AIR DEFLECTOR KIT.    ISSUED - 6/18/81

 PURPOSE - TO FORCE AIRFLOW TOWARDS THE TUBE FOR MAXIMUM COOLING OF THE CERAMIC.  THIS KIT CONSISTS OF A WHITE TEFLON CYLINDER BELOW THE PLATE BLOCKER ASSEMBLY.

MI-563393-5 FOR SOME REASON WAS NOT A G-LINE KIT.

MI-563393-6  VISUAL OUTPUT COUPLING PADDLE.   ISSUED - 7/16/81

PURPOSE - TO IMPROVE THE PRIMARY TO SECONDARY CIRCUIT COUPLING CHARACTERISTICS OF THE 17/30H CAVITY.  THE OUTPUT COUPLING PADDLE WAS CHANGED FROM A RECTANGULAR SHAPE APPROX. 3" X 1.75" TO A LARGER PADDLE WITH A ROUNDED BOTTOM APPROX. 3.5" X 2.75".

MI-563393-7  FILAMENT SUPPLY CAPACITOR WIRING KIT.    ISSUED - 7/28/81

PURPOSE - TO INSTALL HEAVIER GAUGE WIRE IN THE CONNECTIONS BETWEEN THE FILAMENT POWER SUPPLIES FERORESONANT TRANSFORMERS AND THE RELATED CAPACITORS.

MI-563393-8  PLATE CLUTCH CARTRIDGE KIT.    ISSUED - 8/12/81

PURPOSE - TO INCREASE DRIVING TORQUE TO AURAL AND VISUAL PLATE TUNING DRIVE SYSTEMS.

MI-563393-9 SCREEN BYPASS CAPACITOR.    ISSUED - 12/28/81

PURPOSE - DECOUPLE AND FILTER THE SCREEN POWER SUPPLY.  THIS KIT IS FOR THE 16L AND 17H TRANSMITTERS USING THE 8976 TUBE AND CONSISTS OF A 1UF 4000 VDC CAPACITOR THAT IS CONNECTED ACROSS THE VISUAL BLEEDER RESISTOR IN THE POWER SUPPLY CONTROL CABINET.

MI-563393-10  VSWR SHIELDING KIT.    ISSUED - 12/3/81

PURPOSE - TO REDUCE THE SUSCEPTIBILITY OF THE VSWR METERING CIRCUITRY TO EXTRANEOUS RF.  THE MODIFICATION IS FOR THE 17H AND 30H POWER AMPLIFIER CABINET WHEN ERRATIC VSWR READINGS ARE A PROBLEM.

MI-563393-11 INPUT TUNING AND MATCHING CAPACITOR KIT.    ISSUED - 7/7/84

PURPOSE - TO REPLACE THE JENNINGS CERAMIC CAPACITORS THAT WERE PRONE TO FAILURE WITH A TEFLON DIELECTRIC CAPACITOR.  THE NEW CAPACITORS REQUIRE 30 TURNS TO COVER THE RANGE 3PF - 30PF PROVIDING FOR SMOOTHER ADJUSTMENT.