Mellotronists group photo

Yahoo Groups archive

Mellotronists

Index last updated: 2026-04-28 23:09 UTC

Message

Re: [Mellotronists] need some help with my mellotron...

2008-07-23 by Ken Leonard

- Is the *sound* fading in and out, the motor speeding up/down, or
both?  That would make a huge difference in what you would look at.

- What motor controller do you have?  If CMC-10, upgrade.

- How's the drive belt for the motor?

- Is the keyboard seated properly?

- If you wiggle the pitch knob, does it correct or cause the problem?
Same with the volume knob?  Perhaps those pots are dirty.

- Did you inspect all connectors?

- Could the adjustment pots on the motor controller be a little touchy?

- Do you have "screeching cable rot"---the fade in/out version?  (Look
it up on my site if you do not know what "screeching cable rot" is.)

Just some quick ideas...

...kl...

On Wed, Jul 23, 2008 at 1:58 PM, Ignacio Nieto
<ignacionietocarvajal@...> wrote:
> Hi...
>
> I need some help with my mellotron. She is not working properly. I have
> had it in a warehouse for 1 year (I have to move to another place and I
> had no place to keep the 'tron until now). After that year I moved the
> mellotron here by my own, in a van, on its case and with care. When it
> arrived, the tron sounded terribly out of tune and oscillating in a
> whoaaa-whoa---wahwah.... I was so scared, but after changing it in the
> room and waiting some days, it appears to work properly, except that:
>
> 1. sometimes (specially when I change the sounds) the engine goes faster
> and starts to oscillate and then the tune goes off in a wah wah.
>
> 2. now when I push 3 or more lower keys, the sound after 2 or 3 seconds
> starts to oscillate too like fading and the engine seems to oscillate
> too. I don't think it is an issue on the tapes because it behaves
> similarly on every sound.
>
> I beg your help on this.
>
> Thanks a lot.
>
> Sincerely.
>
> Nacho.
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.