MATRIXSYNTH: Minimoog "old" osc board


Wednesday, June 23, 2010

Minimoog "old" osc board

via this auction

"an extremely rare Osc board (the desirable "old" version) for a Minimoog all parts are present."
Posted by matrix at 6/23/2010 05:42:00 PM
LABELS/MORE:

5 comments:

  1. Anonymous6/23/10, 7:22 PM

    if by "extremely rare" you mean "the most common", then yes that is an accurate description.

    ReplyDelete
  2. Anonymous6/23/10, 7:23 PM

    and by "you" i mean the auction author, not Mr Matrix.

    ReplyDelete
  3. matrix6/23/10, 7:39 PM

    Thanks STG. I updated the post. I forget the revisions and numbers of each.

    ReplyDelete
  4. Unknown6/23/10, 8:45 PM

    I didn't read it as the item itself was extremely rare, but rather a rare offering of the board. And i would also guess that the latest version of the oscillator board is "the most common"...just sayin'

    ReplyDelete
  5. matrix6/24/10, 12:38 AM

    I checked the AH list to see how many revisions there were and how they might rank as far as numbers. The following came in:

    "At least three:

    1. Discrete - on the early RA Moogs and maybe some others.
    2. Mostly discrete with 3046 array + temp co resistor
    3. Op-amped with heated uA726 array (after s/n 10175)

    The additional octave buffer board was added towards the end of the second revision.

    Tony
    www.oakleysound.com"

    Followed by:
    "- Orignal osc board (2N4058 expo) up to SN 1236
    - Second osc board (CA3046 expo) from SN 1237 to 10174
    - Third osc board (ua726 expo) from SN 10175 onward

    I'd guess that over half the CA3046 boards have been replaced by ua726 boards but that is pure speculation.

    -Cary"

    Not sure which board that is in the pic.

    ReplyDelete

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