MOTM

The 800 uses a Panasonic SU series Bipolar 'Lytic.  The Digikey part 
# is P1198 for 3.3M, P1196 for 1M and P1280 for 10M.
I would have the 1M in circuit at all times.  With the toggle in 
upper position a 3.3M would be in parallel with the 1M for 4.3M.  
With the toggle in lower position a 10M would be in parallel with 
the 1M for 11M.  I might consider trying a 22M just to see what it 
is like.  
I have a Studio Electronics SE-1 which has a quicker attack than the 
MOTM (I think - at least it sounds that way to me).  I really like 
the pop on the attack under some situations.



--- In motm@yahoogroups.com, media.nai@r... wrote:
> At 2:39 PM +0000 5/14/03, paulhaneberg wrote:
> >
> >I was planning on adding a 3 position toggle to my 800s, allowing
> >for three caps to be selected.
> 
> It fits on a 190, so that sounds like it would work.
> 
> >The middle range would use the
> >3.3uf.  I was going to use a 10uf for the long range.  I hadn't
> >selected a cap for the short range yet.  I was thinking about a 
1uf,
> >but I may go a little smaller depending on how fast I want to get.
> 
> I was thinking of building three versions (I have one 800 built, 
two kits
> arrived last week, and two more are on backorder) making three 
stock,
> one extra fast, and one extra slow.  Since I am also adding Moe's 
LED
> mod, my plan is to use three different colors to tell them apart.
> 
> I'm thinking of keeping 3.3uF as the stock value (even though Paul 
S.
> says 6M8 is "ideal"), using 1uF for snappy, and 22uF for extra long
> sweeps and fades.
> 
> Then again I'm just guessing.  Based on reported results, 3M3 is 14
> seconds and 10M is 25 seconds.  So I'm thinking 1M would be be a
> maximum of about 7 seconds, (which is still pretty long) and 22M
> would be about 35 seconds.
> 
> >  I will probably get some stooge panels made for my 800s as I am
> >thinking of adding some other mods as well.  I'm playing with a
> >design for a voltage controlled trigger/gate delay and also with 
the
> >idea of enabling the 800 to retrigger itself so that it would act 
as
> >sort of a LFO.  I have not decided how much of this to incorporate
> >into a modified 800.  I may just make stand alone addons.
> 
> Imho, stand-alone addons would be more flexible and less invasive.
> 
> >BTW, I was planning on replacing C9 with the smallest cap and then
> >adding the other caps in parallel when the toggle is switched.  
That
> >way I could use a three position center off toggle, but I'm unsure
> >whether this will create a leakage problem.
> 
> How would that create a leakage problem??  Have you found source 
and
> part number for low-leakage non-polar radial caps??  So far it is
> between the Panasonic SU and the Xicon NPRL.   Any idea which part
> the 800 uses for 3.3uf??  I can't tell from the markings.
> 
> 
> At 9:25 PM -0400 5/13/03, media.nai@r... wrote:
> >Digikey lists three different Xicon radial 6.8uF 50V non-polar and
> >bi-polar caps in their catalog on page 265.
> 
> Doh!!  That should be Mouser instead of Digikey.  It's on page 265 
of
> Mouser catlaog 612.   Digikey lists the Panasonic SU.