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Kiwi Power Supply for non-Kiwi Polysix?

Kiwi Power Supply for non-Kiwi Polysix?

2014-10-24 by jim@saltlands.com

Hello all,

Curious what everyone might think of this…


Would it be safe to install the Kiwitechnics power supply upgrade if I'm not using the KiwiSix board upgrade? I checked with Murray at kiwi and he says he hasn't tested it so can't advise.


Just trying to come up with a plan to further reduce noise overall.


thanks!


jim

Re: Kiwi Power Supply for non-Kiwi Polysix?

2014-10-24 by jim@saltlands.com

Great! Did it noticeably reduce noise?


---In PolySix@yahoogroups.com, <swamp.gigs@...> wrote :

Hi,

Yes - it works perfectly ! Obviously calibrate it tho' ...

Regards,

Tony

Re: Kiwi Power Supply for non-Kiwi Polysix?

2014-10-25 by feline1@feline1.co.uk

Subject: Re: Kiwi Power Supply for non-Kiwi Polysix?
Yep, I got SynthProf to install the Kiwisix PSU board in my Polysix... I have the new KLM clone board and Johannes Haustensteiner's MIDI board in mine. 
The kiwisix psu works no problem, and I noticed a very significant drop in the noise floor. I didn't take readings before and after, but going by ear and memory, at a guess we're talking about 6dB less hiss and hash on the audio out - so really worth doing!
D

Re: [PolySix] Low cost note-on/off MIDI for PolySix

2015-04-18 by Bob Grieb

Hello Group,

   I designed a small pc bd that plugs in in place of the PolySix key assigner
and adds MIDI note on and note off.  It can also trigger the arpeggiator using MIDI clk
with various divide rates.   MIDI channel and divide rate are set by holding down a key
at power up, and are saved in EEPROM.  No other features are added.   No MIDI output
is provided by my design. 

    If anyone is interested, I can supply either a pc bd, or a pc bd and a programmed PIC
chip if you want to build one.   I don't plan to offer assembled boards.   The pc bd plus
programmed PIC chip is $27 + $3 S&H to USA addresses.   The other parts to build up
a board would cost another $10 or so, plus S&H from your supplier.

   I actually have two versions, one for the PolySix and one for the Poly61, since they used
the same key assigner MCU.   I think it should also work in the MonoPoly, but I have no way
to test that.

   Bob Grieb



Re: [PolySix] Low cost note-on/off MIDI for PolySix

2015-04-18 by Bob Grieb

I should add that my design does not use SMT chips,
to ease construction, so it is larger than a 40-pin DIP
package and overhangs the socket.   That's why there
are two versions, since the layout of the Poly61 is different.
If there is interest, it probably makes more sense for me to offer
a complete kit of parts, to save S&H on the other bits.   But you
would need to assemble it.  Also, you would need a MIDI
jack on the back of your synth.

   Bob

From: "Bob Grieb bobgrieb@yahoo.com [PolySix]" <PolySix@yahoogroups.com>
To: "PolySix@yahoogroups.com" <PolySix@yahoogroups.com>
Sent: Saturday, April 18, 2015 4:36 PM
Subject: Re: [PolySix] Low cost note-on/off MIDI for PolySix

 
Hello Group,

   I designed a small pc bd that plugs in in place of the PolySix key assigner
and adds MIDI note on and note off.  It can also trigger the arpeggiator using MIDI clk
with various divide rates.   MIDI channel and divide rate are set by holding down a key
at power up, and are saved in EEPROM.  No other features are added.   No MIDI output
is provided by my design. 

    If anyone is interested, I can supply either a pc bd, or a pc bd and a programmed PIC
chip if you want to build one.   I don't plan to offer assembled boards.   The pc bd plus
programmed PIC chip is $27 + $3 S&H to USA addresses.   The other parts to build up
a board would cost another $10 or so, plus S&H from your supplier.

   I actually have two versions, one for the PolySix and one for the Poly61, since they used
the same key assigner MCU.   I think it should also work in the MonoPoly, but I have no way
to test that.

   Bob Grieb





Re: [PolySix] Low cost note-on/off MIDI for PolySix

2015-04-18 by klosmon

Well, cool.
Will send $30 today.

Regarding Polysix MIDI used on the Monopoly -- I've attached other MIDI
key assigner boards from the P6 to the MP; one issue to be dealt with
is the fact that the Monopoly keyboard starts on F, rather than C.

~GMM

On 4/18/2015 1:36 PM, Bob Grieb bobgrieb@yahoo.com [PolySix] wrote:
> Hello Group,
>
> I designed a small pc bd that plugs in in place of the PolySix key
> assigner
> and adds MIDI note on and note off. It can also trigger the
> arpeggiator using MIDI clk
> with various divide rates. MIDI channel and divide rate are set by
> holding down a key
> at power up, and are saved in EEPROM. No other features are added.
> No MIDI output
> is provided by my design.
>
> If anyone is interested, I can supply either a pc bd, or a pc bd
> and a programmed PIC
> chip if you want to build one. I don't plan to offer assembled
> boards. The pc bd plus
> programmed PIC chip is $27 + $3 S&H to USA addresses. The other
> parts to build up
> a board would cost another $10 or so, plus S&H from your supplier.
>
> I actually have two versions, one for the PolySix and one for the
> Poly61, since they used
> the same key assigner MCU. I think it should also work in the
> MonoPoly, but I have no way
> to test that.
>
> Bob Grieb
>
>
>
>

Re: [PolySix] Low cost note-on/off MIDI for PolySix

2015-04-18 by Bob Grieb

Got it.  The code checks for a diode to see which synth it's
running in.   Guess I need to use that to change the MIDI
numbers a little for the MP.   I will work on that when the
need arises.

    Bob

From: "klosmon klosmon@sbcglobal.net [PolySix]" <PolySix@yahoogroups.com>
To: PolySix@yahoogroups.com
Sent: Saturday, April 18, 2015 5:07 PM
Subject: Re: [PolySix] Low cost note-on/off MIDI for PolySix

 
Well, cool.
Will send $30 today.

Regarding Polysix MIDI used on the Monopoly -- I've attached other MIDI
key assigner boards from the P6 to the MP; one issue to be dealt with
is the fact that the Monopoly keyboard starts on F, rather than C.

~GMM

On 4/18/2015 1:36 PM, Bob Grieb bobgrieb@yahoo.com [PolySix] wrote:
> Hello Group,
>
> I designed a small pc bd that plugs in in place of the PolySix key
> assigner
> and adds MIDI note on and note off. It can also trigger the
> arpeggiator using MIDI clk
> with various divide rates. MIDI channel and divide rate are set by
> holding down a key
> at power up, and are saved in EEPROM. No other features are added.
> No MIDI output
> is provided by my design.
>
> If anyone is interested, I can supply either a pc bd, or a pc bd
> and a programmed PIC
> chip if you want to build one. I don't plan to offer assembled
> boards. The pc bd plus
> programmed PIC chip is $27 + $3 S&H to USA addresses. The other
> parts to build up
> a board would cost another $10 or so, plus S&H from your supplier.
>
> I actually have two versions, one for the PolySix and one for the
> Poly61, since they used
> the same key assigner MCU. I think it should also work in the
> MonoPoly, but I have no way
> to test that.
>
> Bob Grieb
>
>
>
>