via this auction
Sunday, October 19, 2014
MOOG PRODIGY SYNTHESIZER SN 11926X
Moog Prodigy Classic Analogue Mono Synthesizer SN 4542X with Emergency Pack
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
"A lovely prodigy in fantastic condition (see photos)
also includes "emergency pack" which consists of
RC4558
LF353N (X2)
LM393N(X3)
CA304E (X2)
2N3904 (X2)
2N3906(X2)"
via this auction
"A lovely prodigy in fantastic condition (see photos)also includes "emergency pack" which consists of
RC4558
LF353N (X2)
LM393N(X3)
CA304E (X2)
2N3904 (X2)
2N3906(X2)"
Emax 1
Published on Oct 19, 2014 SSM Curtis
"Sampler with analog filters
00:40 Various Drums
01:16 Bass
01:24 Filter
01:51 Pad"
EXPERIMENTAL SYNTHESIZER BASED ON AY-3-8910 CHIP
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
"This auction is for an experimental synthesizer based on the General Instruments AY-3-8910 Programmable Sound Generator chip. The AY-3-8910 chip was used extensively in the early to mid 1980's as the main sound generator on a large number of commercial coin-operated video games. This chip has remained elusive to most since the extended data sheet is hard to come by. The chip was first manufactured by General Instruments from the late 1970's until the late 1980's, then a few were made by Microchip Technology. Early in the 1990's a pin-for-pin and functionally identical version was manufactured by Yamaha and sold under the part number YM2149F.
This experimental unit breaks out each and every register used on the AY-3-8910 into switches and controls so the user can manually adjust each of the three tone generators and the envelope control by means of control panel knobs. In addition, the unit is pre-programmed to work via a 61-key keyboard through the Lupine Systems Series 400 Keyboard Interface Board (included but not pictured). This interface board allows the user to connect any single pole un-matrixed keyboard to the unit. The programming is set up to assimilate each keystroke into the appropriate musical note assigned to each key. The user may shift the octave up and down by 1 on each of the three generators. The user may also select from the pre-programmed musical scale tuning or variable off-key tuning or a fixed frequency note.
Full envelope control is provided through the AY-3-8910 envelope generator. Included with the unit and pre-wired is one Lupine Systems Series 400 Filter/Modulator which provides basic LPF function and a LFO for modulation control.
The unit also has full control over the way the keyboard is scanned and processed, including an arpeggiator and key repeat/scan direction control. The speed in which the keys repeat along with the pulse width of the trigger can be adjusted to create a variety of unique sounds.
The unit outputs sound via four RCA jacks, one for each AY-3-8910 audio channel (A, B, C) and one "composite" output, which is an even mix of A+B+C. The unit also outputs a TTL compatable trigger for external triggering functions.
An expansion interface is also included which originally was used for a MIDI interface and to operate a YM2413 based voice unit.
Included with this auction is the entire experimental unit, one Lupine Systems Series 400 Interface Module for Parallel (unmatrixed) Keyboards, one 26-pin ribbon cable (which connects the unit to the Interface board), and a set of schematics. The schematics are for the Lupine Systems Series 400 Mini, which is very very very close to this unit but some of the pin numbers for the connectors may not be the exact same. A copy of the software for the PIC16F73 microcontroller is also included on CD-ROM in MPASM (assembly) format so you can see how the processor does its thing.
Keyboard is NOT included with this auction! Any 61-key keyboard (or fewer keys say 48 key is common on old organs) will work as long as it is NOT matrixed (multiplexed) and has individual switches for each key with a common ground bus."
I created a new General Instruments label for these moving forward. There was one post featuring the AY-3-8910 from Little-Scale back in 2011 here.
via this auction
"This auction is for an experimental synthesizer based on the General Instruments AY-3-8910 Programmable Sound Generator chip. The AY-3-8910 chip was used extensively in the early to mid 1980's as the main sound generator on a large number of commercial coin-operated video games. This chip has remained elusive to most since the extended data sheet is hard to come by. The chip was first manufactured by General Instruments from the late 1970's until the late 1980's, then a few were made by Microchip Technology. Early in the 1990's a pin-for-pin and functionally identical version was manufactured by Yamaha and sold under the part number YM2149F.
This experimental unit breaks out each and every register used on the AY-3-8910 into switches and controls so the user can manually adjust each of the three tone generators and the envelope control by means of control panel knobs. In addition, the unit is pre-programmed to work via a 61-key keyboard through the Lupine Systems Series 400 Keyboard Interface Board (included but not pictured). This interface board allows the user to connect any single pole un-matrixed keyboard to the unit. The programming is set up to assimilate each keystroke into the appropriate musical note assigned to each key. The user may shift the octave up and down by 1 on each of the three generators. The user may also select from the pre-programmed musical scale tuning or variable off-key tuning or a fixed frequency note.Full envelope control is provided through the AY-3-8910 envelope generator. Included with the unit and pre-wired is one Lupine Systems Series 400 Filter/Modulator which provides basic LPF function and a LFO for modulation control.
The unit also has full control over the way the keyboard is scanned and processed, including an arpeggiator and key repeat/scan direction control. The speed in which the keys repeat along with the pulse width of the trigger can be adjusted to create a variety of unique sounds. The unit outputs sound via four RCA jacks, one for each AY-3-8910 audio channel (A, B, C) and one "composite" output, which is an even mix of A+B+C. The unit also outputs a TTL compatable trigger for external triggering functions.
An expansion interface is also included which originally was used for a MIDI interface and to operate a YM2413 based voice unit.
Included with this auction is the entire experimental unit, one Lupine Systems Series 400 Interface Module for Parallel (unmatrixed) Keyboards, one 26-pin ribbon cable (which connects the unit to the Interface board), and a set of schematics. The schematics are for the Lupine Systems Series 400 Mini, which is very very very close to this unit but some of the pin numbers for the connectors may not be the exact same. A copy of the software for the PIC16F73 microcontroller is also included on CD-ROM in MPASM (assembly) format so you can see how the processor does its thing.
Keyboard is NOT included with this auction! Any 61-key keyboard (or fewer keys say 48 key is common on old organs) will work as long as it is NOT matrixed (multiplexed) and has individual switches for each key with a common ground bus."
I created a new General Instruments label for these moving forward. There was one post featuring the AY-3-8910 from Little-Scale back in 2011 here.
J3RK 291 Demo - Buchla Eurorack
Published on Oct 18, 2014 wind0spirit's channel
"A demo of the J3RK buchla dual 291 band pass filter with variable band width (what a mouthfull!) This filter uses vactrols to perform all voltage control functions, so normally FM maxes out at around 15 Hz. So I used some h11f1 Fet-based optocouplers to allow for FM that responds well into ultrasound. I compared to some units with the standard LDR-based vactrols and found very little difference in audio quality. Enjoy!"
Casiotone 701
Uploaded on Jan 2, 2011 solidstatecollective
"You know, I take alot of flack for the Casio instruments so I thought it might be a good thing to explain my position. Here it is... Nostalgia, affordability and accessibility.
When I was a little kid. I didn't sit around dreaming of buying a Jupiter 8 or an OB-12. My dream was to buy a Casio PL5 with the barcode reader. I used to see it in the department store display case and dream about all the great music that I could make with it. My grandmother (R.I.P.) took notice and eventually bought me one for my birthday.
I've got to think that there are millions of people throughout the world just like me. I will be forever thankful to the Casio company for figuring out a way to make electronic instruments affordable to all of the poor dreamers out there.
As I grew older, I graduated to more expensive instruments made by the 'pro' brands. Most of those instruments have died on me but my Casio's are still running just fine.
Here's to all the kids out there, throughout the world who are making their dreams happen on a Casio. May your instrument serve you well.
You can see more on this and other instruments on my blog at www.solidstatecollective.blogspot.com"
Volca and Monotribe 10 19 2014
Published on Oct 19, 2014 benweichiba
"Warming up the toys after a two month break...I didn't stop to dust them off..."
Noise Rack Diary #03: One patch to noise them all #TTNM
Published on Oct 19, 2014
"One Patch and a whole lotta noise!
Here's the Eurorack Modular Synthesizer Case on ModularGrid:
http://www.modulargrid.net/e/racks/view/127484
Here's the patch from this video (it's just this one and a lot of knob tweaking):
http://tinyurl.com/noiserack03patch
Gear used in this video:
- Klangbau Köln CV-Prozessor Joystick
- Klangbau Köln XR-VCO
- Klangbau Köln State Variable qVCF Filter
- Doepfer A-180 Passive Multiple
- Klangbau Köln Low-Noise Spring Reverb
- Nervous Squirrel Passive Germanium Ring Modulator
Audio recorded on a Zoom R16. Filmed with a Canon EOS 550D (Rebel t2i) and GoPro HD Hero."
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
