Discussion about the Korg PolySix synthesizer

Ah shoot. One of my local electronic shops was out of all but one of the plastic capacitors needed for the KLM clone. They had 473K polyester capacitors though. So, while not prefect, do you suppose this would be an ok substitute? Not ideal, I'm sure ...

For the plastic film caps, I would think you'll be fine
with polyester,polystyrene, polypropylene, PTFE, metalized, etc.

As for 473K ...I assume you mean 473 "XX" farads? What is the value you are
talking about.

For the caps needed on the board:
0.047 microfarads = 47 nanofarads = 47,000 picofarads

Take your pick.

Best regards,

Jed
*
*
On Thu, Sep 16, 2010 at 11:04 AM, ML <f115@rocketmail.com> wrote:

>
>
> Ah shoot. One of my local electronic shops was out of all but one of the
> plastic capacitors needed for the KLM clone. They had 473K polyester
> capacitors though. So, while not prefect, do you suppose this would be an ok
> substitute? Not ideal, I'm sure ...
>
>  
>


[Non-text portions of this message have been removed]

Ah yes! These are the ones used mostly for keeping transients away from the
DC outputs of the mux. Tolerance is not critical here so the types you
mention should suffice. BTW the 'K' ML talks about is the tolerance value,
which in this case is 10% and yes, 4 7 3 is 47 with 3 zeros pF, which is
0.047uF as stated!

Bye for now,
Andy

On 16/09/2010 19:29, "Jed Jorgensen" <jed.jorgensen@gmail.com> wrote:

> For the plastic film caps, I would think you'll be fine
> with polyester,polystyrene, polypropylene, PTFE, metalized, etc.
> 
> As for 473K ...I assume you mean 473 "XX" farads? What is the value you are
> talking about.
> 
> For the caps needed on the board:
> 0.047 microfarads = 47 nanofarads = 47,000 picofarads
> 
> Take your pick.
> 
> Best regards,
> 
> Jed
> *
> *
> On Thu, Sep 16, 2010 at 11:04 AM, ML <f115@rocketmail.com> wrote:
> 
>> 
>> 
>> Ah shoot. One of my local electronic shops was out of all but one of the
>> plastic capacitors needed for the KLM clone. They had 473K polyester
>> capacitors though. So, while not prefect, do you suppose this would be an ok
>> substitute? Not ideal, I'm sure ...

There you go. Learned something new. Thanks, Andy.

On Thu, Sep 16, 2010 at 12:02 PM, Andrew Jury <andy@networkjabber.com>wrote:

>
>
> Ah yes! These are the ones used mostly for keeping transients away from the
> DC outputs of the mux. Tolerance is not critical here so the types you
> mention should suffice. BTW the 'K' ML talks about is the tolerance value,
> which in this case is 10% and yes, 4 7 3 is 47 with 3 zeros pF, which is
> 0.047uF as stated!
>
> Bye for now,
> Andy
>
>
> On 16/09/2010 19:29, "Jed Jorgensen" <jed.jorgensen@gmail.com<jed.jorgensen%40gmail.com>>
> wrote:
>
> > For the plastic film caps, I would think you'll be fine
> > with polyester,polystyrene, polypropylene, PTFE, metalized, etc.
> >
> > As for 473K ...I assume you mean 473 "XX" farads? What is the value you
> are
> > talking about.
> >
> > For the caps needed on the board:
> > 0.047 microfarads = 47 nanofarads = 47,000 picofarads
> >
> > Take your pick.
> >
> > Best regards,
> >
> > Jed
> > *
> > *
> > On Thu, Sep 16, 2010 at 11:04 AM, ML <f115@rocketmail.com<f115%40rocketmail.com>>
> wrote:
> >
> >>
> >>
> >> Ah shoot. One of my local electronic shops was out of all but one of the
> >> plastic capacitors needed for the KLM clone. They had 473K polyester
> >> capacitors though. So, while not prefect, do you suppose this would be
> an ok
> >> substitute? Not ideal, I'm sure ...
>
>  
>


[Non-text portions of this message have been removed]

Yes - sorry - I took that for granted. 0.047uF. They mark it 47 3K on the film and poly caps.

Good to hear I can get away with that. I'll try it out. 

I'm not happy about it mind you.  I missed my opportunity to get the right ones when I placed my newark/farnell order. The stock was there when I went to compare prices on all this stuff.  Low and behold they were all gone went I went back. The university students probably just cleared the place out once school started :)

As always - thank you! I'm about to start building this so I'll let you know how it all goes.

Best ~