Marker-Signalyst WR-525A

RCA (RCA Victor Co. Inc.); New York (NY)

Data
Forum
Pictures
Collections

  • Year
  • 1972
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 215150
    • alternative name: RCA Manufacturing || Victor Talking Machine

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Wave bands
  • VHF incl. FM and/or UHF (see notes for details)
  • Power type and voltage
  • Batteries / addl. power jack / 9 / 9 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Marker-Signalyst WR-525A - RCA RCA Victor Co. Inc.; New
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 4.25 x 3.5 x 3 inch / 108 x 89 x 76 mm
  • Notes
  • RCA WR-525A Marker-Signalyst;

    Generates a Picture Carrier Frequency on all US FCC standard VHF Channels (55.25 to 211.25 MHz) with harmonic output in the UHF range. Two ranges: Ch 2 - 6, & Ch 7 - 12.

    Modulation input: AF/VF/RF up to 4.5 MHz.

    Text provided by Ebay.com user "mescosun" 3/2012:

    "The WR-525A has two basic functions:

    Marker Generator:

    The WR-525A can be used with the RCA WR-155A TV Channelyst or similar sweep generator to provide picture-carrier markers on all VHF channels. Sound carrier markers can be also obtained by using the WR-514A oscillator. Since the WR-525A has RF sweep on all VHF channels, the combination of these two instruments is well suited to applications such as checking tuner performance, tuner alignment, and overall RF/IF alignment checks.

    Signalyst:

    External signals up to 4.5 MHz can be used to modulate the RF output of the WR-525A. This feature makes the device useful for many applications in television servicing. For example, you can use the video output from a generator such as the RCA WR-515A Master Chro-Bar to modulate the WR-525A output. this will provide test patterns (color bars, crosshatch, etc.) on all 12 VHF channels, with harmonic output on the UHF channels.

    In a similar application,you can connect the output from the video detector of an operating TV receiver to the WR-525A and obtain the televised program material on any VHF channels or use as a test signal in servicing other sets. These applications make the WR-525A extremelt useful in TV alignment and servicing, including checking and servicing closed circuit TV and MATV systems."
  • Author
  • Model page created by a member from A. See "Data change" for further contributors.

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