-40%

Vintage McIntosh MI-3 Maximum Performance Indicator (Serviced, Recapped & Tubed)

$ 1055.97

Availability: 100 in stock
  • All returns accepted: ReturnsNotAccepted
  • Modification Description: Serviced, Recapped & Retubed.
  • Model: MI-3
  • MPN: MI-3
  • Country/Region of Manufacture: United States
  • Condition: CLICK on YouTube DEMO Link: https://youtu.be/aXEC5pA7WEk For your consideration. A vintage McIntosh MI-3 Maximum Performance Indicator. Serial # 11E54 In VG cosmetic condition. For a detailed view of the unit up close View listing photos & YouTube DEMO link. There is some separation of the black screen print around the Panalocs & a very small crack in the bottom right corner of the glass. Unit has been serviced, recapped & retubed. All service adjustments performed by a professional tech semi-retired with 45 years experience in high-end audio repairs to bring unit back to original factory specifications if not better. Looks, sounds & performs beautifully. The unit shows signs of use, and is clean and working properly. That being said, due to the age of this device & the uncertain nature of vintage electronics. This unit is being sold AS IS as pictured/described, meaning returns are not accepted. You are buying with this in mind. Item will ship insured with signature required. Thanks f
  • Modified Item: Yes
  • Custom Bundle: No
  • Brand: McIntosh

    Description

    McIntosh MI-3 Maximum Performance Indicator
    CLICK on YouTube DEMO Link:
    https://youtu.be/aXEC5pA7WEk
    For your consideration. A vintage
    McIntosh MI-3 Maximum Performance Indicator. Serial # 11E54
    In VG, if not EX cosmetic condition.
    For a detailed view of the unit up close
    View listing photos & YouTube DEMO link
    .
    There is some delamination
    around the Panalocs & a very small crack in the bottom right corner of the glass.
    Unit has been s
    erviced, recapped & retubed.
    All service adjustments performed by a professional tech semi-retired with 45 years experience in high-end audio repairs to bring unit back to original factory specifications if not better. Looks, sounds & performs beautifully. The unit shows signs of use, and is clean and working properly. That being said, due to the age of this device & the uncertain nature of vintage electronics. This unit is being sold AS IS as pictured/described, meaning returns are not accepted. You are buying with this in mind. Item will ship insured with signature required. Thanks for looking!
    McIntosh MI-3
    Maximum Performance Indicator (1970)
    Description
    The McIntosh MI-3 is five laboratory instruments combined into one compact instrument.
    It is a professional oscilloscope, relative signal strength indicator. calibrated FM deviation meter, calibrated balance meter. and phase indicator. These instruments are used by FM stations to determine the best possible performance for your listening enjoyment.
    The McIntosh MI-3 Maximum Performance Indicator makes it easy for you to attain professional broadcasting quality FM listening.
    It shows you what you need to do to improve your system's overall performance. It is designed to be used with an FM tuner and stereo preamplifier.
    When the MI-3 is used with an FM tuner it will detect and display multipath reception. Multipath reception is the result of a reflected signal arriving at the tuner antenna slightly later than the direct signal. By rotating or repositioning your FM antenna it is possible to reduce the multipath reception. The Maximum Performance Indicator makes it easy to know when the FM antenna is oriented for the best reception of any station.
    To show multipath reception the MI-3 displays instantaneous signal strength versus frequency deviation. Signal strength is shown as vertical deflection of the indicator display beam. Frequency deviation is shown as horizontal deflection. Multipath reception appears as a peak or valley in the MI 3 picture tube display
    Specifications
    Signal strength (vertical) input: 700mV
    Dimensions: 16 x 5-7/6 x 13 inches
    Weight: 23 lbs
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