[sdiy] Model D service

[Michael E Caloroso]

The tuning procedure in the service manual is not correct and could
cause some frustration.

I posted the correct tuning procedure on AH years ago, look for it
using the search archive on retrosynth.com.

MC

On 5/6/17, Magnus Danielson <magnus at rubidium.dyndns.org> wrote:
> Among modifications implemented is changing VCO board.
>
> Depending on VCO board, one problem is that TEMPCO resistors does not
> sit on the expo-pair transistors, leading to poor temperature
> compensation leading to instability in frequency which is something you
> may or may not want to fix. I know of at least three different VCO board
> versions.
>
> The service manual and its trimmings should be followed naturally.
>
> Cheers,
> Magnus
>
> On 05/07/2017 04:56 AM, Michael Zacherl wrote:
>> + are there any modifications implemented?
>>
>> On 7.May 2017, at 0:39 , Magnus Danielson <magnus at rubidium.dyndns.org>
>> wrote:
>>
>>> What serial number is this MiniMoog?
>>>
>>> What version of VCO-board does it have?
>>>
>>> Is it know to detune with temprature/time?
>>>
>>> As always, check the power to see how good the capacitors is, it might
>>> need new caps in the PSU.
>>
>>
>>
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