” You’re bidding on an analog “patch cord” monophonic synthesizer that contains all of the fundamental modules needed for music synthesis. I assembled this synthesizer in 1980 using 4700-series kits from the legendary PAiA Electronics, Inc. in Oklahoma.
This synthesizer was in “working” condition before I stored it away. I was already an experienced electronic kit assembler at age 18 when I assembled all of the modules. I used terminal strips to create “bus bars” inside the module cabinets to conveniently provide the three supply voltages (plus ground) to all of the modules. Once I got to college at PSU I begged an Electrical Engineering professor let me use a frequency meter in a lab to calibrate each key of the keyboard to the proper pitch. I recently applied power to the cabinets and proved that the power supplies are working, but their output voltages will need to be recalibrated according to the manuals. I say that this unit is “working”, but I never really got it to make the sounds I was hoping for…” Click here to search for synths on eBay
“JIMJAMSVINTAGEMUSIC brings you Two vintage Paia synthesizer kits. One surf synthesizer kit and one wind chime synthesizer kit. Both kits unbuilt, One box included and some extra literature. The brochure has alot of different items from the time period.” 
“For sale is a vintage PAiA Modular Synthesizer.
” Up for offer is a non-working PAiA 2720 Analogue Modular 1970s Synthesizer for parts or restoration. Features 8 components: pitch/trigger out, power supply, voltage control oscillator, function generator, low pass filter, bandpass filter, control oscillator and voltage control amplifier. Some keys are sticking and have yellowed and wood block that holds pitch/trigger out needs to be replied. Nice Moog-era vintage piece. I have too many projects so I will be offering up more vintage PAiA in future listings. Thanks for looking and stay safe.”
” Up for offer is a non-working PAiA modular synth box for parts or restoration. Features 7 components: 4720 (four of these), 4711, 4761 and 4771. Nice Moog-era vintage piece. I have too many projects so I will be offering up more vintage PAiA in future listings. Thanks for looking and stay safe.”
” As found. I am unable to test other than pressing the red button on module 4740. When pressed, the left LED comes on quickly then goes out, and the right LED stays on as long as the button is held.
“Sold as is untested no returns no matter what PAIA 4770 4770 4780 Custom Eurorack System Modular Synth Sequencer. Condition is “For parts or not working”.” 
“Paia Stringz N Things Circuit Bent Analog String Synthesizer 1550 Parts/repair. Condition is “For parts or not working”. I never tried to power up I may blown something” 
“PAIA 2720-3L VCF Low Pass Filter + Extras
“Vintage PAiA Gnome (3740) Analog Ribbon Synthesizer. Made from kit. Dates to the 70’s (specifically 1975/1976), judging from the info I have found online. Item was working, but stopped making any sound. Needs a power supply (was originally being run off of two 9 volt batteries, but this connection has come loose). Has a 3.5mm mini jack for audio output.
“A Chord Egg synthesizer in working condition, in a crude home-made cabinet with a built-in AC power supply. Please read the full description and examine the pictures carefully, they are an important part of the description.” 
“PAIA VCO SYNTH MODULE MODULAR. Condition is Used.
“PAIA Synthesizer Module Power Supply. Condition is Used. This is a 2700 power supply. Nice features for a synth project or Paia restoration. Unknown working condition but looks to be intact. Front panel has a lot of grime/rust but it seems to come off with my fingernail so it should be able to be cleaned ok.” 
“PAIA Electronic Synthesizer Module Kits 9730/K, 9710K, and 9710frm Unassembled. Condition is For parts or not working because I have no way of testing them before assembly. These are electronic kits from years and years ago. These came to me unopened, so I assume they are unchanged from the factory, so all the parts should be there. I have no way to be sure. The 9710K and 9730/K kits each include a pre-drilled printed circuit card. The 9710frm kit contains a pre-drilled, pre-printed control panel blank. There are NO instructions or diagrams, just the information sheets seen in the photos. If you are a PAiA synthesizer enthusiast, you will know what these are. I hope they will be useful to you! You are bidding on the set of three kits, not individual items. Happy bidding!” 
” model 4700 modules as seen in double rack case, there are 2 8700 modules as well
“Up for bids is a Paia Gnome 3740 Analog Micro Synthesizer.
“Paia 2700 Vintage Keyboard.. Condition is Used.
“Classic analog synth, everything works great, comes with power supply. Midi in and thru, channel controlled by dip switches. Great sounding fat bass and liquidy acid lines and a nice snappy envelope. Great little synth for the money, and cool Moog Style k obs make this one really look great!” 
“Paia 9700 series modular synth rig has been meticulously soldered with high-end audiophile solder. This unit includes a 8 step sequencer that incorporates the Ken Stone Sequential Switch ([link removed by eBay]) which is routed to a set of 8, completely bypass-able, control voltage knobs. This unit has two transformers, and two power supplies. One for the 9700 modules and one for the sequencer/potentiometer bank. This has been working in my smoke-free studio for 10 years. VCO 1v/octave tracking may need re-calibration, which is easy: I will include paper instructions and documents for each and every module including power supplies. Wooden case is sturdy white oak. Includes a handle on one side. Three power indicating LED’s are on a front panel that includes a few multiples (3.5mm and 1/4″ jacks wired in parallel), but the LED’s are not currently connected- this doesn’t effect function. This rack has plenty of LED’s!”
“If you are a PAiA Phan you know what this is and how rare it is! There are a few scratches on the face plate, as you can see. Also my beefy power supply kept blowing the 1/8W 47 Ohm resistor so I am including a few 1/4W for your DIY hands to replace. My eyesight and unsteady hands would only make matters worse! Last time (before it blew) it was working fine as were all the LEDs.
“This auction is for a vintage PAIA Gnome touch ribbon synthesizer and a rack mount PAIA 6710 Vocoder with attached power supply along with the respective manuals and schematics.
“Up for sale is a Paia Vocoder 6710. A very rare vocoder kit. Assembled by Cynthia Instruments. Appears fully assembled, but condition is unknown because I dont have any way to test it, though there appear to be wires for hooking it to a power supply. Also selling a PAiA Quadrafuzz in a separate auction. Potential bidders should check photos and see that everything is to there liking. Because of the nature of the sale, I will not be able to accept returns, and condition is for Parts/ As is.”
“Paia Strings N Things 1550 Synthesizer Project . Condition is For parts or not working.
“PAIA FATMAN ANALOG DESKTOP SYNTHESIZER SYNTH MIDI. Good Shape Everything works. Not sure of the OS.”
“Theremax Paia Theremin Synth. Good shape fully functioning. Condition is Used.”
” FRIEND OF MINE PAST AWAY FROM HIS ESTATE PAIA SYNTHSPIN WHICH SEEMS TO WORK, HAVEN’T TESTED THE GNOME, 8 VCO’S, PLUS OTHER PAIA PARTS, PLUS MANUALS THAT CAME WITH ITEMS. BECAUSE OF AGE ALL ITEMS SOLD AS-IS”
“Up for bid is this great looking:
“PAiA 4700/S modular synthesizer with a mix of 47xx modules and what seem to be some custom modules. I have no way to test this, so sold as-is. Shipping to continental US only.”
“PAiA FatMan used in great shape and fully functional”
“A rare find original synth kit that I purchased from the original owner. Condition is excellent. No corrosion and only minor wear on the cases. It has been tested and works (powers up and emits sound when connected). Included are the original patch cables (not all have been tested). Also included is “A GUIDE FOR USING THE PAIA 4700/S SYNTHESIZER SYSTEM” printout with detailed information on each of the components.
“This is a used modular synthesizer that was completely built from a kit. The first A/R envelope on the oscillator panel is a little wonky but it can still be used. Everything else works as it should.”
“PAIA modular synth. This unit lights up and mostly seems to work but there are some things that we are not able to test, so this unit is being ‘AS IS'”
“PAiA OZ Mini Synthesizer Organ FM polyphonic. Condition is Used.
“PAiA 4780 Sequencer KIT, new parts but not in original box. All parts (including the faceplate and two PCBs) are sealed in original plastic. There are no assembly or operating instructions. However, this website includes links to all manuals along with other info about this very rare device. Originally sold for $60 in 1976!”
“Up for sale is this vintage PAiA 4700 Modular Analog Synthesizer W/ upgraded keyboard controller and extras. It’s condition is “Used” but system is in very good condition. The case and fittings are all in great shape. Both the synth and upgraded keyboard were assembled by a former PAiA engineer and this sale includes a bunch of extra hardware left over from his build. In addition to manuals for every installed module, some of the extras include various patch cables, IC chips, switches, potentiometers, a remote volume knob as well as an additional un-assembled Watt Block module (w/ power supply).