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Parts list for a M3

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    Parts list for a M3

    Hello,
    I'm rebuilding my M3, and I'm looking for a capacitor and resistor parts list. Also, is there a good place to buy decent caps for a reasonable price? They don't need to be top-shelf, good standard ones would be fine. I'm planning on swapping out all the caps as a winter project, including the generator. It's time. Thanks for the help...
    Christine

    #2
    Here are some of the capacitors I use for fixing up these little beasts:

    For the tone generator:
    .1 uf Panasonic ECQE2104KFB (replaces the .105uf)
    .15 uf Panasonic ECQE2154JB (use in parallel with a .1uf to replace the .255uf)

    For the M3 vibrato line:
    .0056 uf Panasonic ECQE6562KFP
    .0027 uf Panasonic ECQE6272JF

    For the amp:

    47uf/50volt 476TTA050M (replace the small electrolytics C14,C30 and C64)
    47uf/450volt (use instead of the "cans" C62, C62A, C63, C65, C66)*

    * You have to be creative in mounting these under the chassis. I leave the old cans in place
    for 'looks'. There are probably specialty replacement cans available if you want to go that route.

    The above parts are selected for good pricing and availability because I'm cheap and impatient 8)
    I use mouser.com for all of these, enjoy!
    Tom in Tulsa

    Fooling with: 1969 E100, 1955 M3, 1963 M100, Leslie 720

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      #3
      Thank you. I took a look under the hood, and I didn't realize most capacitors are disks. I was taught that these don't deteriorate over time... Yes, no, replace? I see there is just a handful of others under there cathode bias coupling etc. I will swap those out for sure. looks like a pretty easy job all around. I was surprised the caps on the generator were just slid into the terminal and soldered. That will make it easy!

      Comment


        #4
        Correct, in the amp only the few electrolytics may need attention. The disks and (probably) the paper-foil caps can be left alone unless you find something that doesn't work. Fortunately Hammond assemblers didn't spend any more time than they had to putting this stuff together so a lot of things come apart pretty easily 8) Watch out for things that "techs" may have monkeyed with, on the M3 I'm working on somebody replaced the 500 ohm resistor in the power supply section with a 5000 ohm resistor! It was not putting out the poop that it should 8)

        Sometimes a resistor can fail causing low output or distortion, but these are probably easiest to find with the amp powered up and checking voltages with a meter.
        Tom in Tulsa

        Fooling with: 1969 E100, 1955 M3, 1963 M100, Leslie 720

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          #5
          Yup! Put my order in to Mouser! Thanks again. Luckily, chassis was untouched.

          Comment


            #6
            Awesome! You are welcome!
            Tom in Tulsa

            Fooling with: 1969 E100, 1955 M3, 1963 M100, Leslie 720

            Comment


              #7
              CE Dist Makes the Can caps:
              https://www.tubesandmore.com/product...-500v-402020-f
              https://www.tubesandmore.com/product...f-electrolytic
              https://www.tubesandmore.com/product...-1375-diameter

              Jim

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