MOTM

Paul, are you online? Please help!

I'm home from work building my modules today. I'm halfway through the 800 EG
and I'm stuck on the "yellow box caps." The manual says they should be
marked "102" & "104" but mine are "1n0 J 63*" and "10n J 63*"

I can make a guess as to which is which, but I'd rather not. I've never seen
this type of cap before, nor is it mentioned in any of my books.

What's a fella to do?  :)

Thanks in advance!

On Mon, 8 Nov 1999, Tkacs, Ken wrote:

> I'm home from work building my modules today. I'm halfway through the 800 EG
> and I'm stuck on the "yellow box caps." The manual says they should be
> marked "102" & "104" but mine are "1n0 J 63*" and "10n J 63*"

  I'm not Paul, but here is how these codes work:

  102 = 10 x 10^2  x 10^-12 = 1000 picofarads = 0.001 microfarads

  104 = 10 x 10^4 x 10^-12 = 100,000 picofarads = 0.1 microfarads

  1n0 = 1.0 "nanofarads" = 1 x 10^-9, = 1000 x 10^-12 = 0.001 microfarads

  10n = 10 nanofarads = 10 x 10^-9 = 0.01 microfarads

  100n = 100 nanofarads = 100 x 10^-9 = 0.1 microfarads


  Are you sure the one cap isn't a 100n  ?

  --Scott

/**/

>> I'm home from work building my modules today. I'm halfway through the 800
EG
>> and I'm stuck on the "yellow box caps." The manual says they should be
>> marked "102" & "104" but mine are "1n0 J 63*" and "10n J 63*"
>
>  I'm not Paul, but here is how these codes work:
>
>  102 = 10 x 10^2  x 10^-12 = 1000 picofarads = 0.001 microfarads
>
>  104 = 10 x 10^4 x 10^-12 = 100,000 picofarads = 0.1 microfarads
>
>  1n0 = 1.0 "nanofarads" = 1 x 10^-9, = 1000 x 10^-12 = 0.001 microfarads
>
>  10n = 10 nanofarads = 10 x 10^-9 = 0.01 microfarads
>
>  100n = 100 nanofarads = 100 x 10^-9 = 0.1 microfarads
>
 In addition, the J means 5% tolerance and the 63 means 63VDC rated.
Crow is right, 1n = .001uf, 10n = 0.01uf, 100n = 0.1uf.

The nf is strictly a European thing.

Paul S.
remembers mmf (pre-picofarad)

On Mon, 8 Nov 1999, Paul Schreiber wrote:

> remembers mmf (pre-picofarad)

  We should find an excuse to put a 1F cap in a MOTM.  1F 5.5WVDC caps are
about $6 ea. these days..heh heh

  Make an LFO of 0.0000000000000000000000000000001Hz or something

  --Crow

/**/

On Mon, 8 Nov 1999, J. Larry Hendry wrote:

> > From: The Old Crow <oldcrow@...>
> >   We should find an excuse to put a 1F cap in a MOTM.  1F 5.5WVDC caps
> are
> > about $6 ea. these days..heh heh
> > 
> >   Make an LFO of 0.0000000000000000000000000000001Hz or something
> 
> Either that or up the voltage and use them for power failure ride through
> on the supply lines.  

  Well, that is what they're actually for. ^^  They're nonvolatile RAM
backup capacitors that keep data in CMOS static RAM intact for up to
several weeks in the absence of system power.

  --Crow

/**/

> From: "Paul Schreiber" <synth1@...>
> Paul S.
> remembers mmf (pre-picofarad)

One that small would be a miniature mf ? 
<snicker> :)
LH

> From: The Old Crow <oldcrow@...>
>   We should find an excuse to put a 1F cap in a MOTM.  1F 5.5WVDC caps
are
> about $6 ea. these days..heh heh
> 
>   Make an LFO of 0.0000000000000000000000000000001Hz or something

Either that or up the voltage and use them for power failure ride through
on the supply lines.  

Larry (feeling particularly Stoogy today) Hendry