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V4B question

Discussion in 'Amps and Cabs [BG]' started by JoelEoM, Apr 19, 2006.

  1. JoelEoM


    Mar 11, 2002
    Lancaster, PA
    just picked up a v4b, obviously vintage, but theres no serial number on the back, and i dont know another way of finding out how old it is, short of pulling it apart. any suggestions on what to look for?
  2. mikeyvr6

    mikeyvr6 Supporting Member

    Feb 19, 2002
    Plymouth, Wisconsin
    1970 through 1979

    The third serial number system was implemented in 1970. Not enough information was available to the authors to determine year of manufacture by serial number. An added variable is that during the Magnavox years, Ampeg may have used separate serial number systems for each model or for models that shared the same chassis like the VT-22 and V-4. Until such time that enough information is available to date 1970s Ampegs by serial number, the features of the amps from this period can be used and compared to the following table.

    Feature Years Used:
    Blue control panel graphics 1968 - 1972
    Black control panel graphics with square corners 1972 - 1975
    Black control panel graphics, horizontally split with rounded corners (solid state amps) 1973 - 1979
    Black control panel graphics, horizontally split with rounded corners (tube amps) 1976 - 1979
    Distortion control knob 1976 - 1979
    White rocker switches (solid state amps) 1973 - 1979
    White rocker switches (tube amps) 1976 - 1979
    Black rocker switches 1968 - 1975
    Metal "a" logo 1968 - 1972
    Plastic "a" logo 1973 - 1979

    Link: http://users.aol.com/bluemuse/ampeg.html
  3. JoelEoM


    Mar 11, 2002
    Lancaster, PA
    thanks man. that puts it at 72-75. thats enough for me for right now i suppose, i just wanted a rough dea of how old it was. its too bad im on the road for my job full time, i wont be able to play it for awhile, but whatever. ive been looking for one of these for like 5 years, so im happy now

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