OldSynths

Hello,

I hope someone can help.

I'm in search of new replacement RESISTOR TRIM POTS for my Micromoog.
(example 1K, 10K, 100K, etc).

I have had problems tuning it and someone suggested to me a
while back (by e-mail)that replacing the trim pots should help.
I was suggested to order from some "standard" online electornics
supply store...but I forgot the name of the place.

The trim pots are the ones mounted on main board and are about
10mm x 10mm in size with a plastic tuning wheel plus 4 circuit
board mounting pins.


Any ideas?

Br
Allan

mlcsixand78s wrote:

> Hello,
>
> I hope someone can help.
>
> I'm in search of new replacement RESISTOR TRIM POTS for my Micromoog.
> (example 1K, 10K, 100K, etc).
>
> I have had problems tuning it and someone suggested to me a
> while back (by e-mail)that replacing the trim pots should help.
> I was suggested to order from some "standard" online electornics
> supply store...but I forgot the name of the place.
>
> The trim pots are the ones mounted on main board and are about
> 10mm x 10mm in size with a plastic tuning wheel plus 4 circuit
> board mounting pins.
>

If I recall, those are standard parts. Get the model # off of them, and
go to your local electronics place, and they should be able to
cross-reference to whatever brand they carry. Don't cheap out of them
though - get some quality ones, or you will have stability problems.
They may cost $ or $5 each for good ones.

If you don't have an electronics store nearby, look up mouser and give
them a call.


--


Check out the website I've been cobbling together. It will never be done, but it's a start:
http://lateralforce.no-ip.org


My blog, with commentary on a variety of things, including audio, mixing, equipment, etc, is at:
http://audioandmore.wordpress.com


Staat heißt das kälteste aller kalten Ungeheuer. Kalt lügt es auch;
und diese Lüge kriecht aus seinem Munde: 'Ich, der Staat, bin das Volk.'
- [Friedrich Nietzsche]

--- In oldsynths@yahoogroups.com, Al Thompson <biggles58@...> wrote:

>
> mlcsixand78s wrote:
> > Hello,
> >
> > I hope someone can help.
> >
> > I'm in search of new replacement RESISTOR TRIM POTS for my Micromoog.
> > (example 1K, 10K, 100K, etc).
> >
> > I have had problems tuning it and someone suggested to me a
> > while back (by e-mail)that replacing the trim pots should help.
> > I was suggested to order from some "standard" online electornics
> > supply store...but I forgot the name of the place.
> >
> > The trim pots are the ones mounted on main board and are about
> > 10mm x 10mm in size with a plastic tuning wheel plus 4 circuit
> > board mounting pins.
> >
>
> If I recall, those are standard parts. Get the model # off of them, and
> go to your local electronics place, and they should be able to
> cross-reference to whatever brand they carry. Don't cheap out of them
> though - get some quality ones, or you will have stability problems.
> They may cost $ or $5 each for good ones.
>
> If you don't have an electronics store nearby, look up mouser and give
> them a call.
>

Mouser, DigiKey, Parts Express, Electronic Goldmine, etc. They all ought to have 'em.

I don't know which trimmers are being replaced but I'd say go with multi-turn trimmers as replacements.

Ed

edncori wrote:

> --- In oldsynths@yahoogroups.com, Al Thompson <biggles58@...> wrote:
>
>> mlcsixand78s wrote:
>>
>>> Hello,
>>>
>>> I hope someone can help.
>>>
>>> I'm in search of new replacement RESISTOR TRIM POTS for my Micromoog.
>>> (example 1K, 10K, 100K, etc).
>>>
>>> I have had problems tuning it and someone suggested to me a
>>> while back (by e-mail)that replacing the trim pots should help.
>>> I was suggested to order from some "standard" online electornics
>>> supply store...but I forgot the name of the place.
>>>
>>> The trim pots are the ones mounted on main board and are about
>>> 10mm x 10mm in size with a plastic tuning wheel plus 4 circuit
>>> board mounting pins.
>>>
>>>
>> If I recall, those are standard parts. Get the model # off of them, and
>> go to your local electronics place, and they should be able to
>> cross-reference to whatever brand they carry. Don't cheap out of them
>> though - get some quality ones, or you will have stability problems.
>> They may cost $ or $5 each for good ones.
>>
>> If you don't have an electronics store nearby, look up mouser and give
>> them a call.
>>
>>
>
> Mouser, DigiKey, Parts Express, Electronic Goldmine, etc. They all ought to have 'em.
>
> I don't know which trimmers are being replaced but I'd say go with multi-turn trimmers as replacements.
>

Good call! Also, use cermet trim pots. They don't develop 'dead spots'
like carbons do.


--


Check out the website I've been cobbling together. It will never be done, but it's a start:
http://lateralforce.no-ip.org


My blog, with commentary on a variety of things, including audio, mixing, equipment, etc, is at:
http://audioandmore.wordpress.com


Staat heißt das kälteste aller kalten Ungeheuer. Kalt lügt es auch;
und diese Lüge kriecht aus seinem Munde: 'Ich, der Staat, bin das Volk.'
- [Friedrich Nietzsche]

--- In oldsynths@yahoogroups.com, Al Thompson <biggles58@...> wrote:

>
> edncori wrote:
> >
> > Mouser, DigiKey, Parts Express, Electronic Goldmine, etc. They all ought to have 'em.
> >
> > I don't know which trimmers are being replaced but I'd say go with multi-turn trimmers as replacements.
> >
>
> Good call! Also, use cermet trim pots. They don't develop 'dead spots'
> like carbons do.
>
>

The multi-turns take a little more time to set but are much more likely to be stable. Once set, a dot of nail polish on the adjustment screw will pretty well lock them in and it's still easy enough to break that seal when it's time to re-calibrate.

Thanks to all for the advice. Much appreciated!

-Allan

--- In oldsynths@yahoogroups.com, "mlcsixand78s" <mlcsixand78s@...> wrote:
>
> Hello,
>
> I hope someone can help.
>
> I'm in search of new replacement RESISTOR TRIM POTS for my Micromoog.
> (example 1K, 10K, 100K, etc).
>
> I have had problems tuning it and someone suggested to me a
> while back (by e-mail)that replacing the trim pots should help.
> I was suggested to order from some "standard" online electornics
> supply store...but I forgot the name of the place.
>
> The trim pots are the ones mounted on main board and are about
> 10mm x 10mm in size with a plastic tuning wheel plus 4 circuit
> board mounting pins.
>
>
> Any ideas?
>
> Br
> Allan
>