Took a little time off from the Polysix, part sanity break and part getting
caught up on some other projects. Unfortunately, two of them were Poly-61
synths, more Victims of Varta. Anyway, the Silonex NSL-32 from Small Bear is
installed and I replaced R93 with a 39K resistor (up from 4.7K) to get it in
the right tuning range. Works great, sounds great. With the 4.7K ohm in, I
got more or less microtonal tuning across the keyboard. Interesting, but not
what I was looking for. The NSL-32 isn't a DIP chip like the P1501. It's a
little barrel with two wires out each end, diode on one end and
photoresistor on the other. The negative pin of the IR diode is marked with
a little white dot.
I thought this might be the last major malfunction for this synth, but no. I
just noticed that patches A6 and C6 won't save the MG Frequency setting in
memory. When you recall these patches, MG Freq is set at max. Bizarre. I
hate to think that I might have to test every parameter of every patch. The
"6" button isn't working very well so I guess I should clean that up first.
Don B.
-----Original Message-----
From: backshall1 (dsl) [mailto:
backshall1@bellsouth.net]
Sent: Wednesday, February 17, 2010 8:32 AM
To: '
PolySix@yahoogroups.com'
Subject: RE: [PolySix] Replacement for HTV P1501 photocoupler?
Allied has a good selection and good prices ($1.78 for Silonex NSL-32) but
there is a $5 handling fee for orders under $25. Small Bear has the NSL-32
for $4 with no minimum and he takes Paypal, and you have to love a site
dedicated to guitar stomp boxes and the "production of loud, growly, raucous
instrumental noise". I'm not sure if I should spend more time going over the
specs for the various choices or just assume that I might have to tweak R93
and/or R85. I guess I'll never know for sure until I order something and try
it out.
Don B.
-----Original Message-----
From:
PolySix@yahoogroups.com [mailto:
PolySix@yahoogroups.com] On Behalf Of
Jed Jorgensen
Sent: Tuesday, February 16, 2010 11:33 PM
To:
PolySix@yahoogroups.comSubject: Re: [PolySix] Replacement for HTV P1501 photocoupler?
Lot's of them at small bear too:
http://www.smallbearelec.com/Categories.bok?category=Photocells+and+Photocouplers
<
http://www.smallbearelec.com/Categories.bok?category=Photocells+and+Photocouplers>Let
us know how that works out. Mine has the same issue but I haven't had time
to debug it.
Jed
On Tue, Feb 16, 2010 at 5:44 PM, Mike Borish <mborish_2000@yahoo.com> wrote:
>
>
> Allied Electronics
>
> --- On Tue, 2/16/10, backshall1 (dsl)
<backshall1@bellsouth.net<backshall1%40bellsouth.net>>
> wrote:
>
> From: backshall1 (dsl)
<backshall1@bellsouth.net<backshall1%40bellsouth.net>
> >
> Subject: RE: [PolySix] Replacement for HTV P1501 photocoupler?
> To: PolySix@yahoogroups.com <PolySix%40yahoogroups.com>
> Date: Tuesday, February 16, 2010, 7:25 PM
>
>
> Vactrol VTL series does look good. I need to poke around the web some more
> to find a good supplier. Silonex also seems to make a few of these things,
> but not many sources for those either.
> Thanks,
> Don B.
>
> _____
>
> From: PolySix@yahoogroups.com <PolySix%40yahoogroups.com> [mailto:
> PolySix@yahoogroups.com <PolySix%40yahoogroups.com>] On Behalf Of
> Mike Borish
> Sent: Tuesday, February 16, 2010 7:11 PM
> To: PolySix@yahoogroups.com <PolySix%40yahoogroups.com>
> Subject: Re: [PolySix] Replacement for HTV P1501 photocoupler?
>
>
>
> Did you try vactrol vtl series?
>
> --- On Tue, 2/16/10, longenough2002 <backshall1@bellsout
> <mailto:backshall1%40bellsouth.net <backshall1%2540bellsouth.net>> h.net>
> wrote:
>
> From: longenough2002 <backshall1@bellsout
> <mailto:backshall1%40bellsouth.net <backshall1%2540bellsouth.net>> h.net>
> Subject: [PolySix] Replacement for HTV P1501 photocoupler?
> To: PolySix@yahoogroups
<mailto:PolySix%40yahoogroups.com<PolySix%2540yahoogroups.com>>
> .com
> Date: Tuesday, February 16, 2010, 4:49 PM
>
> Now that my KLM-367 seems fairly happy, I've turned to the KLM-366B to see
> what's up with the stretched tuning. Playing up an octave seems to go 13
or
> so semitones instead of 12. VR3 will improve this a bit if it is cranked
> fully clockwise, but not enough to solve the problem. VR2 doesn't do
> anything at all. The culprit seems to be the PC1 photocoupler. I did a
> quick
> check on the web and didn't see any except at the big parts wholesalers
> where there is either a $200 minimum order or minimum 1000 pieces or
> something like that. On Ebay all I can seem to find are transistor-output
> type devices, not the old style photo-resistor output like the P1501. Does
> anyone know where to get one of these, or what a reasonable replacement
> might be?
> Thanks,
> Don B.
>
> ------------------------------------
>
> PolySix "Digiest" Page: http://www.acc
> <http://www.acc.umu.se/~amber/Poly6Yahoo> umu.se/~amber/Poly6Yahoo! Groups
> Links
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
> ------------------------------------
>
> PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6Yahoo! Groups
> Links
>
>
> [Non-text portions of this message have been removed]
>
>
>
[Non-text portions of this message have been removed]
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