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#1600 WOW 501 STEAM Sound Decoder for O, G, S scales

  • The WOW501 is a universal, 5 Amp sound decoder for large-scale locomotives. 
  • The WOW501 includes Keep Alive® on-board for stutter-free operation. 
  • Includes Light, Medium, Heavy Steam, and Reading & Northern #425 Locomotive Sounds!
  • Function 5 and 6 may be programmed to control a smoke unit with a coil and fan. 
  • By programming CV58 with a value of 9, the smoke unit will react to the chuff timing.
  • For a complete list of available sounds, check out the TCS website.

CD-Quality Sound:

  • TCS' world-renowned CD-quality sound. 
  • 16 Bits of resolution at 44.1kHz sample rate.


  • Included on-board for smooth, stutter-free operation.

Back EMF Load Compensation:

  • Provides superior slow speed control and high performance under load.

Quiet Drive:

  • Super-quiet motor control for "buzz" free motor performance.

DC Mode:

  • Decoder will automatically detect DC power. 
  • You can also configure how your lighting effects function on DC.
  • Variable Momentum:
    • Allows you to make custom acceleration and deceleration curves.
    Incandescent Bulb Support:
    • This decoder can be used with 12 Volt bulbs.
    Function Remapping:
    • Buttons 0 through 12 may be used to control the lighting functions of this decoder.
    Programmable Lighting Effects:
    • Choose from 20 separate user-programmable lighting effects!
    Dimmable Brightness:
    • Configure multiple different brightness levels for your LED's or incandescent bulbs.
    Decoder Lock:
    • Feature which prevents accidental/unwanted programming while activated.
    Airwire™ Compatible:
    • Fully compatible with Airwire™ operation.
    • Use a positive voltage trigger to synchronize your chuff rate to your drivers' rotation.
    Audio Assist®:
    • TCS exclusive auditory feedback programming system. 
    • Program your decoder without the need to memorize CV's!
    User-Loadable Speed Tables:
    • Configure custom speed curves and set speed limits.
    Throttle Modes:
    • Choose from multiple throttle modes to meet your operating needs.
    True Scale Sound:
    • A unique WOWSound feature which uses TCS’ exclusive auto-adjusting BEMF technology to automatically change the intensity of the chuff. 
    • Prototype Mode also offers dynamic sound volumes which accurately model the real-life equivalent. 
    • Also includes pre-programmed acceleration and deceleration values.
    Brand New inventory - We are an Authorized TCS Dealer!

    Interface Type: Hard-Wire
    Dimensions (L x W x H): 3.004" x 1.413" x 0.551" or 76.3mm x 35.9mm x 14mm
    Scale: O Scale G Scale S Scale
    Continuous/Peak: 5/10 Amp
    Total Functions: 8
    Function Rating: 1A
    12V Outputs: 8
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