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Wednesday, March 24, 2021
Quasimidi Rave-O-Lution 309 Synthesizer Drum Machine
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"Quasimidi Rave-O-Lution 309 Synthesizer Drum Machine Sequencer w/ Adapter. Needs new volume knob but works. One mute button is loose and needs replaced or adjusted."
via this auction
"Quasimidi Rave-O-Lution 309 Synthesizer Drum Machine Sequencer w/ Adapter. Needs new volume knob but works. One mute button is loose and needs replaced or adjusted."
Vtg Casio CZ-1000 49-Key Digital Keyboard Synthesizer w/cord And Carrying Case SN 1032668
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video by MagDrake2013
No audio demo, but that is one super clean and shiny CZ-1000.
via this auction
video by MagDrake2013
No audio demo, but that is one super clean and shiny CZ-1000.
via this auction
Vintage Saarang Electronic Tambura Tanpura Drone Synth Synthesizer Radel TBR 8
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Runs on 6 C batteries and for having such a small speaker can get loud, it also has a 1/8' mono speaker outlet on the side. Radel Saarang Electronic Tanbura
The 'Saarang' produces the plucked sound of a conventional stringed tambura (tanpura) used for classical Indian music. The sound is produced electronically without the use of any strings. The 'Saarang' plays by itself and does not need a person to play it, you just adjust pitches and speed.
Pitch tunable by more than octave and covers the range of male as well as female voices - from lower A to higher C (lower 6 to higher 1, Karnatic system or lower White 6 to higher White 7, Hindustani System).
via this auction
Runs on 6 C batteries and for having such a small speaker can get loud, it also has a 1/8' mono speaker outlet on the side. Radel Saarang Electronic Tanbura
The 'Saarang' produces the plucked sound of a conventional stringed tambura (tanpura) used for classical Indian music. The sound is produced electronically without the use of any strings. The 'Saarang' plays by itself and does not need a person to play it, you just adjust pitches and speed.
Pitch tunable by more than octave and covers the range of male as well as female voices - from lower A to higher C (lower 6 to higher 1, Karnatic system or lower White 6 to higher White 7, Hindustani System).
CLAP TRAP HANDCLAP SYNTHESIZER MADE IN ENGLAND BY SIMMONS
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via this auction
Product sheet scan below.
"Here is a very sought after vintage musical device: The Simmons Clap Trap with Humanizer function. It is the last of the analog versions of the Clap Traps before they went digital. It is an analog handclap synthesizer with controls that allows you to shape the handclap sound from a thin click to an almost drum slamming sound, and play them back on the unit. It also provides different trigger inputs in the back and the ability to alter the sensitivity of the trigger signal. This unit was used on such 80s hits as Gary Newman's CARS and Kim Carnes' BETTY DAVIS EYES."
via this auction
Product sheet scan below.
"Here is a very sought after vintage musical device: The Simmons Clap Trap with Humanizer function. It is the last of the analog versions of the Clap Traps before they went digital. It is an analog handclap synthesizer with controls that allows you to shape the handclap sound from a thin click to an almost drum slamming sound, and play them back on the unit. It also provides different trigger inputs in the back and the ability to alter the sensitivity of the trigger signal. This unit was used on such 80s hits as Gary Newman's CARS and Kim Carnes' BETTY DAVIS EYES."
Handmade DIY Synth - Sound/Noise Generator 5 oscillators madness with CV in
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video by SMMP
via this auction
"This is a Synth/Noise Generator/Toy/Portal I built completely from scratch. The circuit I designed starts from basic schematics you can find in the datasheet of the main sound generator IC (40106 and 4046). The ways the oscillator interact are based on almost random routing and wiring, going through several logic gates, including a 4066 if I remember well, for automatic switching.
There are 2 LDR, although the video don't make much justice to their function. If on certain setting, it will produce different sound at night rather than during the daytime. You can experiment pointing a torch to the LDR or to bend over them to modulate the sound (it affects the behaviour of two oscillators, in ifferent configurations).
There is also a nice area with bolts sticking out. If you touch two of them, particularly after licing your fingers, you can dramatically control the sound.
There are switches that controls the routing of the oscillators or enable larger capacitors, LEDs to make it funky, and some sort of CVin (minijack). I played a bit with conductive dough I made with my son, but it would be cool to try it with veggies and fruits, more bodies touching while exchanging fluids and so on.
The case is made of stained recycled pallet wood (pine) which I joined using fingers joints and then it's been sanded and polished several times using danish oil. The panels are old circuit board that were skipped in an educational environment and that I recycled from being dumped. Rather than using them as PCB here they are used like panels."
video by SMMP
via this auction

There are 2 LDR, although the video don't make much justice to their function. If on certain setting, it will produce different sound at night rather than during the daytime. You can experiment pointing a torch to the LDR or to bend over them to modulate the sound (it affects the behaviour of two oscillators, in ifferent configurations).
There is also a nice area with bolts sticking out. If you touch two of them, particularly after licing your fingers, you can dramatically control the sound.
There are switches that controls the routing of the oscillators or enable larger capacitors, LEDs to make it funky, and some sort of CVin (minijack). I played a bit with conductive dough I made with my son, but it would be cool to try it with veggies and fruits, more bodies touching while exchanging fluids and so on.
The case is made of stained recycled pallet wood (pine) which I joined using fingers joints and then it's been sanded and polished several times using danish oil. The panels are old circuit board that were skipped in an educational environment and that I recycled from being dumped. Rather than using them as PCB here they are used like panels."
Make Noise Strega Desktop Synth And Complex Delay Unit SN 588 w/ Original Box
Tuesday, March 23, 2021
Pantala Labs Vega - New Open Source Eurorack Stochastic Sequencer
video by Gibran Salomao
Details:
"Stochastic Sequencer with probabilistic and direct access notes and control over:
legato
scale
root note
transpose
loop in and out
portamento
dynamic envelope shape variation
2 cv ins routable to 8 parameters
note size
accents
center octave
same note / different note
4 other algorithms mode (stochastic bubbles, GOL, Markov)
MIDI out.
INs: sync , reset
OUTs: master clock (trigger), valid trigger(trigger), note (CV)and dynamic envelope(CV);
Open source CC-BY-SA
https://github.com/PantalaLabs/vega
www.pantalalabs.com"
Erica Synths DB-01 Quick Tip: Filter Tracking
video by Richard DeHove
"The DB-01 doesn't have tracking by default, but it's easy to activate by CV. There's some other internal CV patching that can give interesting results as well!
0:00 Setting up filter tracking
0:45 Tracking with noise
1:14 LFO in noise mode
1:40 Useful resonance
2:36 Clock to Gate In
3:12 Clock to CV In
3:55 Odd 'delay' effect
4:30 Adding white noise"
https://richarddehove.com/
Lots of downloads for supporters on Patreon: https://www.patreon.com/richarddehove
Richard DeHove DB-01 posts
Yamaha EX5 VL (1998)
video by KEYBOARDS NOSTALGY
Dates: 1998 - 2000
Keyboard: 76 keys
Storage memory: 512 preset; 256 user; 128 performances
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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