When I rebuilt my 2700/4700 system in 2014, I Frankensteined together a 9771 Regulated PS, dropped it to +/- 9V and then the K60 Regulated supply for the 18V line. Added a power switch, LEDS and a +/- 5V bias and it's worked great even since. Very clean sounding now. I used the Blacet PSCONN power d...

When I rebuilt my 4700 I redesigned the look of the front panels. For power I took 9771-15 FRAC power supply, dropped the voltages to +/-9 and then added the K60 Regulated Power Supply and got a 7824(?) VR to get the +18V regulated. I used the Blacet power distribution boards in the cabinets to avoi...

Thanks, Rob. I guess I have been busy of late!

John was a major contributor to Polyphony back in the day. He really ran with John Simonton's FRAC design and produced rock solid modules. He will be missed.

Did anyone check with Scott Lee to see if there was any information over at PAiA?

The biggest improvement you can make with a PAiA system is to find the regulated power supply module or, better still, put together your own, including an 18V power line. And get rid of the power rails...that was so low tech even back in the day!

That's a lot of D/A converters you have there. I see only one keyboard. What all are they connected to? I also notice the old keyboard interface mounted in the cabinet. How is that being used? The PAiA ascetics has always been nice and efficient but I wish there was a "4700" panel upgrade for the "2...

Nice functionality! When do you anticipate assembled units will be available?

Thanks for pointing those things out as I wasn't sure. I have a quad ADSR with EOA, D & R. Now it makes more sense, especially the end of decay = start of sustain.

Thanks for pointing those things out as I wasn't sure. I have a quad ADSR with EOA, D & R. Now it makes more sense, especially the end of decay = start of sustain.

That's the sad truth about this all. Euro really took off and left FRAC in the dust. Without customers there's no money to expand and grow the line. :bang: And with some major players in the market now, Euro is just gonna get bigger, while the modules get denser. So soon we will have a group of musi...

Anything would be welcomed in our drought-stricken FRAC world!!

The good news-bad news is we don't have new modules coming out every 2.73 seconds.

Now you're talkin'! Start designing it!

I never was crazy about the time base pot. I would prefer a long/med/short switch. I would like to see ala PAiA 4740 ADSR a fixed out along with a variable + out to go along with the variable inverted out. Trigger outs at the end of A, D & R is cool. But what I would really like to see is a FRAC qua...

I cheated and went this route:

http://adinfinitummusic.com/Rack-Produc ... _panel.jpg

Ten four-way 3.5mm multiples grouped into pairs. Each pair is normalized together, providing up to five seven-way multiples. Standard 1U 19-inch rack panel

Maybe you might find a CGS "real ring" modulator around? They are rarer than hens teeth but - who knows? - you just might get lucky.

Time to chime in! I have used the PAiA FRAC Racks with and without covers (I prefer without) as well as the original and RAK-2 Blacet Racks. I don't give a rats ass about "flimsy" or "sturdy." I have not had a problem with either and have owned about a dozen or so between the three. Maybe I'm just n...

I don't know the answer but you could run the CV out of the Kenton into an attenuator or mixer and start with a lower voltage into the VCF and VCA. I recall in the manual for the PAiA 09700 MIDI>CV Converter that recommend an attenuation network to scale the output CV for the pitch wheel output. In ...

The 10-turn pots really help the tuning resolution plus they still look vintage à la the EMS VCS3 synth. The PP-2 jacks are just passively connected. Damn...I didn't even think about buffering! BTW, the bottom 3 jacks are RCA jacks. Why RCA jacks, you ask? Why to connect the CV and Gate output from ...

Very cool! Here are some pics of my rebuild.

It looks great! When I did my 2700/4700 refurbishing project I decided to go less "original" and more minimalistic with my front panel aesthetics. But I do like the Moog meets PAiA vibe on your ladder filter! I also decided to use all 3.5mm jacks to make it easier to interface with my other modular ...

The PAiA 9720 VCO is a triple wide panel. You can easily change the power requirements to +/-15V by removing R1 & R2 and jumpering it with bare wire. It works great.

They do offer just the PCB with components. The panels and jacks are separate. http://paia.com/p9700s.asp. If the pots are part of the panel I would suggest going with smaller ALPS brand pots. There are some normaled connections so I don't know if banana jacks will interfere with the operation or no...

I did some eyeballing measurements with a ruler and it looks like the outside diameter of the jacks, with washer, is 5/16". You maybe have another 1/32" or 1/16" before you hit the lettering. More importantly, it looks like there's just a 1/16" gap between most of the jacks, top to bottom. I'm not a...

The first gen PAiA modules are high density. The jacks and pots are panel mounted. The second gen modules aren't as dense but the pots and jacks are PCB mounted.

I hope that helps.

I second Rob's suggestion. In fact there's a couple of mods for the VCF that extend the range of the filter's front knob somewhere here on Muff. I ran it by Scott and he thought it was fine.

Here's a link about taming the excessive Q:

http://paia.com/manuals/docs/9730_Res_R.pdf