[sdiy] Potentiometers and Mounting PCB's

[Stewart Pye]

Hi David,

Yes, the 16mm pots should be Ok on their own for small PCB's. The PCB's 
are double sided so I can solder on the top side to strengthen the joint.

A downside for the panasonic pots is that the flat of the D shaft is in 
the wrong place when the PCB is mounted vertically, and they are not 
available in a wide range of values (eg: 1M).

Regards,
Stewart.


David Ingebretsen wrote:
> These Panasonic pots are a bit pricey, but they are a solid mount to the PCB
> and panel.
>
> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&l
> ang=en&site=us&keywords=P3R7503-ND%09&x=18&y=14
>
> They are basically the ones John Blacet uses. I've found the mounting
> geometry for the pins is close enough to the Spectrol or BTI pots (like MOTM
> uses) that you could use them in the same holes if you want to.
>
> For what it's worth, I found that with a small'ish PCB (like the CGS Steiner
> filter), the pots you linked to work fine especially if you have several of
> them on the edge mounting to the panel.
>
> David
>
>
>
> ~~ -----Original Message-----
> ~~ From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
> ~~ bounces at dropmix.xs4all.nl] On Behalf Of Stewart Pye
> ~~ Sent: Saturday, February 27, 2010 5:09 PM
> ~~ To: Synth DIY
> ~~ Subject: [sdiy] Potentiometers and Mounting PCB's
> ~~ 
> ~~ I've layed out a couple of PCB's over the weekend. They have PCB mounted
> ~~ 16mm pots, like these.. http://www.bitechnologies.com/pdfs/p160.pdf
> ~~ I was looking at Mouser, Digikey etc for pots that have a robust
> ~~ mounting bracket on them, but all the horizontal mount pots I could find
> ~~ with brackets did not have a threaded bush.
> ~~ 
> ~~ I've seen that a common method is to use a "stooge" bracket that goes
> ~~ between the panel and the pots and folds around to the side. I guess if
> ~~ I can't find suitable pots I'll do this. Does anyone know of pots that
> ~~ are available that would obviate the need for the bracket?
> ~~ 
> ~~ Regards,
> ~~ Stewart.
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> ~~ Synth-diy at dropmix.xs4all.nl
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>
>
>