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    Collins Catalog 1961 OCR Page 0014

    Uploaded by

    Christian Cespedes
    The document summarizes various AM transmitter components from Collins, including: - Conversion kits to change Collins AM transmitters to operate at different frequencies. - A 172G dummy load for off-air testing of transmitters with power ratings up to 1 kW. - A WG-52 dummy load for the Collins 21E transmitter with a peak power rating of 7.5 kW. - 42E antenna coupling units to match transmitters to vertical radiators, with power ratings from 250-10,000 watts. - Tower lighting filter chokes to isolate AC power lines from antennas, rated for 2,000 watts. - A remote antenna metering kit for the Collins 550A-2 and

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    © All Rights Reserved
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    Collins Catalog 1961 OCR Page 0014

    Uploaded by

    Christian Cespedes
    78 views1 page
    The document summarizes various AM transmitter components from Collins, including: - Conversion kits to change Collins AM transmitters to operate at different frequencies. - A 172G dummy load for off-air testing of transmitters with power ratings up to 1 kW. - A WG-52 dummy load for the Collins 21E transmitter with a peak power rating of 7.5 kW. - 42E antenna coupling units to match transmitters to vertical radiators, with power ratings from 250-10,000 watts. - Tower lighting filter chokes to isolate AC power lines from antennas, rated for 2,000 watts. - A remote antenna metering kit for the Collins 550A-2 and

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    The document summarizes various AM transmitter components from Collins, including: - Conversion kits to change Collins AM transmitters to operate at different frequencies. - A 172G dummy load for off-air testing of transmitters with power ratings up to 1 kW. - A WG-52 dummy load for the Collins 21E transmitter with a peak power rating of 7.5 kW. - 42E antenna coupling units to match transmitters to vertical radiators, with power ratings from 250-10,000 watts. - Tower lighting filter chokes to isolate AC power lines from antennas, rated for 2,000 watts. - A remote antenna metering kit for the Collins 550A-2 and

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    78 views1 page

    Collins Catalog 1961 OCR Page 0014

    Uploaded by

    Christian Cespedes
    The document summarizes various AM transmitter components from Collins, including: - Conversion kits to change Collins AM transmitters to operate at different frequencies. - A 172G dummy load for off-air testing of transmitters with power ratings up to 1 kW. - A WG-52 dummy load for the Collins 21E transmitter with a peak power rating of 7.5 kW. - 42E antenna coupling units to match transmitters to vertical radiators, with power ratings from 250-10,000 watts. - Tower lighting filter chokes to isolate AC power lines from antennas, rated for 2,000 watts. - A remote antenna metering kit for the Collins 550A-2 and

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 1

    AM TRANSMITTERS

    COLLINS AM TRANSMITTER carrier power output of 250 -1,000 watts. The 42E -8A
    CONVERSION KITS operates with transmitters of 5,000 watts and the
    42E -8B operates with transmitters of 10,000 watts.
    The conversion kits listed below for the various The electrical circuit of the 42E Antenna Coupling
    Collins AM Transmitters include all transformers, Units is a low -pass "T" network with good harmonic
    meters and necessary capacitors for the same fre- attenuating properties. A three -wire or two -wire tower
    quency. Crystals are not included. One set of tubes lighting filter choke and remote antenna current sam-
    is included for the final RF and audio stages only pling transformer may be mounted in the cabinet, and
    and any necessary rectifiers. Components for frequency an antenna current meter and line current meter jack
    change are additional. are provided.
    No Part Number $1,100.00
    A horn gap furnishes lightning protection. The an-
    300J -2 to 550A. tenna connection is made by an insulated feed-through
    No Part Number Si ,395.00 bushing on the side of the cabinet and the bushing
    550A to 20V -2.
    No Part Number Si ,525.00 has a hollow stud for the lighting circuit. The trans-
    330.1-2 to 20V -2. mission line comes through the base of the cabinet.
    No Part Number $2,995.00
    21E to 21M. Gray weatherproof aluminum housing. Remote an-
    tenna current metering kit and antenna current trans-
    former for remote reading of antenna current up to
    COLLINS 172G DUMMY LOAD
    This air -cooled unit provides a load to dissipate
    Size: 42E -7 - -
    25 amps available for all Collins AM Transmitters.
    29" W, 28" H, 18" D. Weight: 64
    lbs. Size: 42E -8A /B 36" W, 28" H, 22" D. Weight:
    transmitter output for off - the -air testing. Consisting of 124 lbs.
    8 ferrule type, non -inductive resistors, with insulated Part No. 522 1028 (Type 42E -7) $350.00
    end brackets and clips, it may be mounted on the Part No. 522 1029 (Type 42E -8A) $595.00
    transmitter or adjacent wall. The 172G -1 has an im- Part No. 522 1029 (Type 42E -88) $875.00
    pedance of 52 ohms; the 172G -2, 73 ohms. Power
    Rating: 1 kw. Size: Approx. 6" W, 9" H, 121/2" D.
    Weight: 5 lbs. COLLINS TOWER LIGHTING
    Part No. 522 1410 014 (Type 172G -1) $62.50 FILTER CHOKES
    Part No. 522 1411 014 (Type 172G -2) $62.50

    STATES WG -52 DUMMY LOAD


    An air -cooled dummy load to dissipate output of
    the Collins 21E AM Transmitter. The WG -52 has
    an impedance of 52 ohms and a peak of 7.5 kw.
    Part No. 097 8138 00 $250.00

    COLLINS 42E ANTENNA


    COUPLING UNITS

    These solenoid wound 2- and 3 -wire chokes provide


    high impedance throughout the broadcast band for
    isolation of the ac power lines from the antenna. Coils
    are wound of # 10 wire and are rated at 2,000 watts,
    120 v ac, single phase. Provided with mounting
    brackets and standoff insulators for mounting in 42E-
    7/8 antenna coupling units. Weatherproof cabinets
    are available for outdoor mounting.
    Part No. 543 3927 $72.50
    Unhoused, 2 -wire, 2,000 watts.
    Part No. 543 3926 $105.00
    Unhoused, 3 -wire, 2,000 watts.

    COLLINS REMOTE ANTENNA


    METERING KIT
    These specially constructed units match a series -fed The Collins remote antenna current metering kit is
    vertical radiator to an unbalanced transmission line. designed for the Collins- series of AM transmitters.
    Intended for continuous, unattended duty in conjunc- The kit for the 550A -2 and 20V -3 includes RF trans-
    tion with transmitters having emission type AO, Al, former, thermocouple, remote meter and meter mount-
    A2 or A3, the 42E -7 operates with transmitters of ing bracket. Specify type of tuner, base current of
    14

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