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  • #1

    t-522

    Hello! I am a retired former basist. I don´t speak english, so i translate this on google. If i write strangely, are allowed to laugh...:I acguired Hammond t-522 organ dating to 1973. They were in when entering completely stuck and they had a strong hum. I updated all the electrolytes and rectifiers, and i made modification to them as the sites have advised. I build a leslie seat as shown in front of the organ in the picture. I would now like to measure and if necessary recalibrate the sounds, which are now uneven in my ears. Since the organ is a stranger to me, i would need some basic instructions on how to prepare the organ tor measurement. Would there be someone on the forum who would like to help me? My purpose would be learn some songs to play for my own pleasure and the others.harmiksi...
    Best Regards, erkki
    Tags: None
  • #2
    Kon Zissis is VERY MUCH the person you want.
    He's located here: https://organforum.com/forums/member/59451-kziss but I can probably tag him here to appear like a genie...
    Now, I'll see if it works!
    Agh. I didn't figure it out. If it was twitter or Facebook I'd do something like: @kziss
    Kon is likely to find the thread, however.
    ...
    The Organ Forum
    https://organforum.com
    -1958 Hofner 550 archtop guitar -1959 C3 and PR40- -1964 Busillachio Harmonium- -1964 M101-
    -1967ish Leslie 122- -1975 T500 (modded..chopped, and reassembled!)-
    -DIY 760 FrankenLeslie/rat hideout-     -1980 Electrokey Electric Piano- -Yamaha electric Harmonium (early 80's?)-
    -1990 Jansen GMF150 amp- -1992 Korg 01W/fd- -1992 G&L S-500 geetar.

    Comment

    • #3
      Welcome to the T Club!
      Current:
      1971 T-202 with Carsten Meyer mods: Remove key click filters, single-trigger percussion, UM 16' drawbar volume correction. Lower Manual bass foldback.
      Korg CX3 (original 1980's analogue model).
      1967 Leslie 122 with custom inbuilt preamp on back panel for 1/4" line-level inputs, bass & treble controls. Horn diffusers intact.
      2009 Marshall 2061x HW Plexi head into Marshall 4x12 cabinet.

      Former:
      1964 C3
      196x M-102
      197x X5
      197x Leslie 825

      Comment

      • #4
        You may only view thumbnails in this gallery. This gallery has 1 photos.
        1 Photo

        Comment

        • enor
          #4.1
          enor commented
          09-22-2020, 01:27 AM
          Editing a comment
          That bench brings back not-so-fond memories of gym class in school ;)
      • #5
        Hello! Thanks for the answers! My questions are perhaps stupid due to my previous bass playing that has been my brain to the soles of my feet....Question1: In what position should the drawbars of the tonebars be during the measurement, or do they matter at all? Question2: How to determine which control rod and the corresponding contact are connected to each other? I have seen on table, but it does not quite opened up to me... As a measuring device i have a new meter equipped with 8Mhz oscilloscope, so i measure the mVpp values. One probe the frame, the other to what? These questions now initially.. My previous post now has picture of the Leslie seat I made. It has an 8" coaxial. Sica element with a 1" tweeter, a styrox drum and a Hammond twin motor.....

        Comment

        • Papus
          #5.1
          Papus commented
          09-22-2020, 05:58 PM
          Editing a comment
          You mounted a cheese wheel foam rotor Leslie inside your organ stool?
          That's pure genius!
      • #6
        You changed the electrolytic capacitors in the amp stages - that's just regular maintenance. Did you also modify the frequency response of the amps, or what else did you do? Trying to understand why you feel that you need to recalibrate the tone generator. You say it's "uneven", but as far as I understand nothing you've done has any impact on how even the tone generator is.
        Current organs: AV, M-3, A-100
        Current Leslies: 22H, 122, 770

        Comment

        • #7
          I have made changes in 3 steps, as has been advised T-500 forum. I have hunch that an attempt has been made to repair the organ.
          The muffler mat had a plastic mallet that was apparently forgotten by the repairman. Tool suitable for tg tapping bars?
          There were also some changes in the wiring.To be specified yet if the google translation doesn´t do.
          Understanding, my intention now would be to just check the voltages given by the tg with a meter, and record them to form a response.
          The organ now makes some sounds clearly louder than the adjacent one. It bothers me...

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          • #8
            To clarity yet, i have no idea how the organ has worked before me. I made changes as soon as i fixed the power supply, hum, and broken the drawbars
            once i was at work. This inequality may be from an older time. I noticed it when i got the sound out of the organ....

            Comment

            • #9
              I see that you're Finnish. If you're a swedish speaking Finn, fÃ¥r du gärna kontakta mig pÃ¥ Svenska via direktmeddelande. I have a feeling much is lost here due to language difficulties ;)
              Current organs: AV, M-3, A-100
              Current Leslies: 22H, 122, 770

              Comment

              • #10
                papus: If you are interested in my seat, i will be happy to give you more information and pictures. Also other users.
                enor: I don´t speak Swedish, but we could try translation? send me an email address, i will reply to it. I agree with you, much is lost in translation

                Comment

                • Papus
                  #10.1
                  Papus commented
                  09-23-2020, 01:12 AM
                  Editing a comment
                  The only Finnish I know is "Kamala" hahahahaha
              • #11
                Hm...The word kamala alone is very contemptuous, but on the other hand, if kamala is attached to the word fine,
                is it very commendable....

                Comment

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