“Home brew synth from I guess the late seventies
I have not tried it out as I suspect it has issues
Everything appears there apart from patch leads that fit into holes on the top panel
I had ideas of building a modular from it but think it a work of art so I leave that decision to the next owner.” Click here to visit listing on eBay
“Home made synthesizer based on the SN76477 chip. Has a look from the 60’s because of the salvaged parts but is no earlier than 1978. Smartly built into the cover of an old RCA *STEREO* record player with all sorts of flying part connections inside. Kind of an adult busy box but it really has stereo output with tone control.
Looks to be a variant of the turbo-encabulator without the dingle arms but certainly still crudely conceived. Jam pins are present but were never part of the original design. A shaded pole motor is wired in without the armature and I have no clue why this is. I bet you could still wire in the Selenium rectifier to create a rotten egg smell if you pleased.
Remember the black vinyl label makers? Must have been a lot of super duper fun-fun. Tons of them on this baby! Has mounting bolts on each side near the top so you could put a strap on this and wear it like Harold from the Red Green show. Could this really have been that far ahead of its time?
Judging by the amply judicious use of telephone wire this may explain your dial up BBS modem interruptions back in the late 1980’s.
Sold as-is and non-working. Please see my other listing for a bit more well made Theremins and Harmonic Percolators!” Click here to visit listing on eBay
“I cant find any info on this, I found information on the mark 2 Minisonic but this is the original.
The speakers are ripped and its a bit tatty, also the stylus is missing.” Click here to visit listing on eBay
“Up for auction is interesting hand made 2 channel analog drum module called – SIMMONS. It was made in eighties in Soviet Union. The title may be was associated with famous Simmons drums or may be the master was copied some Simmons circuits in creation this unit or something like that. As a result we have a black box with two identical channels of analog drum synthesis that sounds very interesting and differents from all other factory analog drum synths that i hear. Control panel parameters – trigger input sensitive, decay, tone sweep, pitch and noise controls for each channel. On the back side – two trigger inputs and line out on a standart 1/4 Jack adapters. You can trigger the synth from drum pads or from any audio out – drum machine, analog output of soundcard etc. It has very sensitive trigger inputs so you even can bridge 1/4 jack adapter by hands and you will get sounds from synth line out. The unit runs from standart 9V power adapter. This device in good working condition. Cosmetically it has some scratches of time on body but for it`s age it looks good. The unit can produce various analog drum sounds with its own character. Really good original device for electronic experiments!” Auction ended. Click here to browse on eBay.
“Ok….having a studio clear out and I’ve no space left so this has got to go!
Two VCO analogue mono synth from the 80’s – these were supplied in kit form from the Electronics and Music Maker magazine at the time. It all works fine, but could probably do with a clean and set up. I had the circuit diagrams around 10 years ago when I first got it but seem to have misplaced them (will keep looking).” Auction ended. Click here to browse on eBay.
“Ghielmetti 20×20 (2pol.) Kreuzschienen Steckfeld Matrix
Passt genau in das Doepfer A100 Gehäuse oder änliche Baugruppenträger.
Für professionelle, Rundfunk, Audio/Video, und Synthesizerbau (z.B. Modulations-Matrix aller EMS!)
• selbstreinigendes Goldkontaktsystem
• Höchste Qualität, Digitale und Analoge Signale können über dieselbe Kreuzschiene/Steckfeld geführt werden
Maße: 127 x 165mm mit Patchsteckern.” Auction ended. Click here to browse on eBay.
“Perfect for homemade analog modular patching. 32 solder points (Lötpunkte) on backside” Auction ended. Click here to browse on eBay.
“These are well put together clone Moog modules that I have been using because I couldn’t find or afford the real thing. I have now replaced them with original modules finally. I bought these used several years ago but I’m not sure where they were manufactured. Whoever made them did a pretty good job.
The five module are;
904a VC Low pass filter
902 VCA
911 Envelope Generator
923 Hi and Low filters/ white and pink noise
903a Random Signal Generator
These are not real Moog modules but sound suprisingly good against the real thing, and for a fraction of the price. The envelope generator uses an S-trig socket that looks like a standard cinch-jones socket but is actually one of the old speaker style sockets from 70s HiFis. I had to make a lead for this module which is not included.” Auction ended. Click here to browse on eBay.
“I am cleaning out my collection of synth diy stuff.
This is a real grab bag, lots of random modules and components, I dont have time to list everything. AS-IS, Im just looking to pass this on to someone who likes messing around with this stuff.
This includes a nice power one +/- 12 or 15v power supply and frac rack.
Modules include –
Dual Oakley sound envelopes
Oakley simple LFO – working with a few issues
Oakley simple VCA – working
Dual Oakley multi-mix – working (Cool +/- mixer that can do sound or cv, with +/- outputs, great for inverting CV)
Steiner VCF – working but fussy – original ken stone design built on bread board
Ken Stone Psycho LFO – needs wiring – some ripped up solder pads on power input but functional.
Some 1/4 to 1/8 patch panels and multiples
Some other old boards like a DOD flanger
This is not all hooked up and working so you are bidding on a project.
Also included, several blank aluminum panels
The contents of my “components drawers” (drawers not included)
This includes lots of components- some very organized, others less so.
– all parts to build a couple more steiner VCF plus lots of other resistors, caps, diodes, etc.
– lots of knobs, pots, and jacks, plugs, power connectors, heat shrink – many IC’s, op amps….
This will require lots of sorting on the buyers part.” Auction ended. Click here to browse on eBay.
“This auction is for a vintage DIY modular analog synth. I purchased this sweet guy at a yard sale and started working on it but I really have too many projects. It is a clearly homemade but nice quality modular analog synthesizer from the mid-1970’s. This is an awesome piece for the collector! Vintage components are used throughout for maximum analog mojo. There are multiple components to this system. Here’s a description of what is included:
1.) KEYBOARD CONTROLLER The keyboard controller is a two octave keyboard that is made from a chopped-off upright piano! This give it a really nice, unique feel. It has CV and gate outputs.
2.) TWO MODULAR CABINETS The two modular cabinets include three VCO modules (V/oct near as I can tell), a module with two summers and a noise source, a quad VCA module, a filter module, an ASDR module, a mixer module, and a power supply module (+/- 15V). The modules are chock full of vintage metal can CA3080 OTAs and other cool components. All jacks are RCA. The cabinets are made from pine and plywood for maximum 1970s homemade vibe.
3.) LARGE PILE OF RCA PATCH CORDS Various lenghts to match the RCA jacks used on the modules
Here is a list of what I have done to this synth since I bought it:
– Cleaned the keyboard contacts and set the keyboard potentiomenters for V/octave response.
– Cleaned all module potentiometers to remove nasty grease from pot shafts (I noticed when taking the pictures that a few (2-3) of the pots are still nto turning quite freeley. I managed to get the rest woring well with pot cleaner so I am sure that is all they need)
– Replaced a bad rotary switch in one of the VCO modules
– Verified the operation of the power supply, labeled power bus, and replaced some broken wires.
– Verified that all modules do not release any magic smoke when power is applied
– Verified that all modules work with the exception of the filter (lack of time on my part, plus I can’t figure out the connections)
– Made some cool noises
All in all it is a VERY cool piece. I just don’t have time or inclination to really get it up and running – I have too many projects.
Here are some caveats/concerns/warnings for potential bidders:
– Due to the age, my lack of knowledge, and the dangers of shipping such an item, I am offering this synth “as-is”. I have tried to be clear about my knowledge of this synth. It may or may not work “properly” or do what you want it to do when you get it. I have no schematics and don’t really know what all of the front panel controls do. I did not design or built this synth. No tech support is available. Electronics knowledge is probably necessary if you want to get this working 100%.
– This thing is home-built. It is fairly robust, but it might not survive the next ELP World Tour. Do not expect Moog build quality.
– Two or three pots are stuck.
– Most of the pots and jacks on the front panels are unlabeled. For someone at all familliar with analog synths it isn’t hard to figure out what most of them do.” Auction ended. Click here to browse on eBay.
“Well here is a bit of an odd item which i know best part of nothing about!
It looks to be a rather complicated home made 6 voice osc/tone generator. It is packed full of old switches and pots and a maze of wires inside. Built in the late 1970s looking at the date codes on the components. I was told the chap that built this use to bulid effects and units for tv and sound effects in the 1960s and 70’s
Not too sure what it was used for but i have had a play with it and this is what i have found…
On the rear is a 5 pin din socket with 3 wires going to a pcb. These then go to selection switches on the front panel to select input trigger mode. Each of the 6 vco sections can have one of the 3 input triggers switched on. That vco is then triggerd by a voltage on its input from either a sequencer or any other voltage output device / keyboard
Each of the 6 sections has its own course and fine tune pots and also 4 x switches for octave selection as per an organ. 16ft – 8ft – 4ft – 2ft – these cn be selected so only one octave note is played or any combination of the 4 at the same time. Also each octave switch has a pan pot to make it a stereo output as well as its own volume control
I have managed to get 5 of the oscs to work but one did nothing. Will want the switches and pots cleaning/repairing to get it all going so i am selling strictly as spares or repairs for parts or restoration
On the pcb there are 6 parts each with some sort of voltage to frequency converter ic
Built into an open sided metal frame. Gone rusty on the frame but front ok
I am not sure what this would have been used for when built but basicly if you have a mono syth with a voltage output onto one input you can have 6 osc’s play at the same time and tune or detune to make polyphonic like playing a chord and 4 x octaves can be played at the same time… : /” Auction ended. Click here to browse on eBay.
“UP FOR SALE IS MY EURORAC STANDARD MODULAR SYTHESIZER THAT I MADE A FEW MONTHS AGO. EVERYTHING IS WORKING AND I BUILT AND DESIGNED THE PCB’S INSIDE ALSO. I AM SELLING IT OFF TO FUND FUTURE MODULAR SYNTHS. THIS SYSTEM CONTAINS A LOT OF THE MODULES I HAVE I PREVIOUSLY SOLD SEPARATE. I DO NOT SUPPLY ANY 3.5mm CABLES.
THESE ARE THE MODULES:
(2)BLACKJACK VCO’S: SAW/RAMP/SQUARE/TRIANGLE/SINE OUTPUTS.
WITH DIRECT CV, SYNH IN, LINEAR CV IN, PWM INPUT, ATTENUATED CV INPUT
(2)MIXER’S: EACH MIXES 3 SIGNALS. THEY CAN ALSO BE USED TO MIX VOLTAGES AND AUDIO.
(1) 12db LM13700 VCF: LPF/HPF/BPF. IT WILL DO CLEAN SINE WAVE AT HI REZ.
(1) POLIVOKS LM4250 VCF
(1) MS-20 VCF
(1) ENVELOPE FOLLOWER
(1) PAD PIEZO INPUT FOR PERCUSSION
(1) MIDI CV 4 VOICE CONVERTER
(3) EXPO VCA’S
(3) NOISE GENERATORS
(3) ADSR GENERATORS
(2) VC-LFO’S : SAW/RAMP/SQUARE/TRIANGLE/SINE
(3) INTERNAL BI-POLAR LINERA POWER SUPPLIES
THERE IS A USA WHITE POWER CORD.
I USED THIS A FEW TIMES AND THEN IT SAT IN MY ROOM SO IT IS IN GOOD CONDITION.
THE PANELS AeBay > Create your listingRE ALUMINUM AND THE CASE IS PINE. THERE IS A HANDLE ON THE TOP TO CARRY AROUND. IT IS NOT THAT HEAVY.” Auction ended. Click here to browse on eBay.