via this listing
Additional Perfect Circuit listings
Tuesday, December 16, 2025
Boss DR-202 Dr. Groove Drum Machine
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
c.1982 MPC “The KIT” Integrated Electronic Drum Machine
Note: links to listings are affiliate links for which the site may be compensated.
video upload by riffers
via this Reverb listing
"Early British classic with that gritty, punchy analogue character.
Recently serviced: every pad triggers reliably; no noisy pots.
Original flat-pack box included. All-original hardware.
Serial (no. 242) on chassis; “Made in England” plate intact.
Set a tempo, balance the per-voice levels, and you’ve got a solid groove in seconds—no menus, no programming detours. The tactile pads invite quick ideas (fills, accents, breaks) and the adjustable pad sensitivity lets you dial in the “human” feel that helps parts sit in a song. Its distinct British analogue tone layers well with samplers/DAWs: track it straight in for gritty loops, one-shot it for kits, or re-amp it through pedals for textures. It doubles as a dependable writing click with character, so riffs and basslines arrive faster.
Fast, hands-on layout. Front-panel rotary controls are primarily per-voice level/volume (plus master TEMPO and LEVEL).
Pad feel is responsive; use the rear trimmers to dial sensitivity for dynamics or hard, machine-tight hits.
Multiple 1/4" jacks along the top panel for audio connections (see close-ups).
Power: 9V battery operation or 9V DC mains adapter (PSU not included).
Condition
Fully working. Pads all trigger; sensitivity trimmers on the underside let you set your preferred feel. Cosmetic wear from age and use: scuffs/scratches and some discolouration; a few rubber feet missing (see photos).
Included
MPC the KIT unit
Original flat-pack/knock-down box"
video upload by riffers
via this Reverb listing
"Early British classic with that gritty, punchy analogue character.Recently serviced: every pad triggers reliably; no noisy pots.
Original flat-pack box included. All-original hardware.
Serial (no. 242) on chassis; “Made in England” plate intact.
Set a tempo, balance the per-voice levels, and you’ve got a solid groove in seconds—no menus, no programming detours. The tactile pads invite quick ideas (fills, accents, breaks) and the adjustable pad sensitivity lets you dial in the “human” feel that helps parts sit in a song. Its distinct British analogue tone layers well with samplers/DAWs: track it straight in for gritty loops, one-shot it for kits, or re-amp it through pedals for textures. It doubles as a dependable writing click with character, so riffs and basslines arrive faster.
Fast, hands-on layout. Front-panel rotary controls are primarily per-voice level/volume (plus master TEMPO and LEVEL).
Pad feel is responsive; use the rear trimmers to dial sensitivity for dynamics or hard, machine-tight hits.
Multiple 1/4" jacks along the top panel for audio connections (see close-ups).
Power: 9V battery operation or 9V DC mains adapter (PSU not included).
Condition
Fully working. Pads all trigger; sensitivity trimmers on the underside let you set your preferred feel. Cosmetic wear from age and use: scuffs/scratches and some discolouration; a few rubber feet missing (see photos).
Included
MPC the KIT unit
Original flat-pack/knock-down box"
Selmer Companion Electric Reed Organ SN 152
Note: links to listings are affiliate links for which the site may be compensated.
video upload by riffers
via this Reverb listing
"Selmer Companion reed organ from the 60s. In tune and wonderfully “parlour-harmonium”: bright, reedy mids with a gentle breathiness on the attack, then a steady, organ-like sustain from the blower. The chord buttons give an instant drone bed with that slightly nasal, woody timbre that cuts through without ever getting harsh. Think small chapel/folk harmonium vibes—perfect for drones, hymnal pads, psych-folk textures, lo-fi soundtrack cues, and vintage pop hooks. Hear it in the demo (skip to last photo). Typical vintage tuning and keybed feel; expect minor variance vs modern concert pitch.
Features
Classic electric reed organ with compact keyboard and built-in blower/speaker
Left-hand chord section: Major & Minor buttons (C, G, D, A, F, B♭) for instant accompaniment
On/off/level control, integrated flip-up music rest in the lid, suitcase-style cabinet with carry handle 1960s/70s Italian vibe: gold fascia, cream case, and period hardware
Sounds exactly like you want a small electric harmonium to sound—see the demo"
video upload by riffers
via this Reverb listing
"Selmer Companion reed organ from the 60s. In tune and wonderfully “parlour-harmonium”: bright, reedy mids with a gentle breathiness on the attack, then a steady, organ-like sustain from the blower. The chord buttons give an instant drone bed with that slightly nasal, woody timbre that cuts through without ever getting harsh. Think small chapel/folk harmonium vibes—perfect for drones, hymnal pads, psych-folk textures, lo-fi soundtrack cues, and vintage pop hooks. Hear it in the demo (skip to last photo). Typical vintage tuning and keybed feel; expect minor variance vs modern concert pitch.
Features
Classic electric reed organ with compact keyboard and built-in blower/speaker
Left-hand chord section: Major & Minor buttons (C, G, D, A, F, B♭) for instant accompaniment
On/off/level control, integrated flip-up music rest in the lid, suitcase-style cabinet with carry handle 1960s/70s Italian vibe: gold fascia, cream case, and period hardware
Sounds exactly like you want a small electric harmonium to sound—see the demo"
c.1971 CRB Elettronica Tanzanite (aka. Diamond) Synthesiser Organ
Note: links to listings are affiliate links for which the site may be compensated.
video upload by riffers
See another model here.
via this Reverb listing
"Serial Nº 21196
Italian-made CRB “Diamond” Cavendish Combo 30 in remarkable condition for its age. Classic combo-organ tones plus a built-in “mini-band” (bass + drums) make it a fun, self-contained writing and performance machine. Built in Ancona under CRB’s Diamond/Cavendish line.
Organ section: Flutes, Clarinets, Reeds, Strings
Presets: Piano, Spinet, Harpsichord
Effects: Sustain and Vibrato (both sound great)
Mini-band (auto-accompaniment)
Drum patterns: Waltz, March, Tango, Bossa Nova, Samba, Slow Rock, Boogie, Disco — all with variable tempo/volume; very much in the vein of early CR-series drum machines.
Bass accompaniment with automatic chords, Free 1-Finger, Memory, and chord quality switching (Major default; Minor/7th via yellow/green buttons).
External output, headphone out
Expression pedal input
Built-in speaker that’s quaint yet surprisingly punchy
UK mains power - we can include a step-up/step-down transformer on request so you can use it in your country without modification, just ask for details."
video upload by riffers
See another model here.
via this Reverb listing
"Serial Nº 21196Italian-made CRB “Diamond” Cavendish Combo 30 in remarkable condition for its age. Classic combo-organ tones plus a built-in “mini-band” (bass + drums) make it a fun, self-contained writing and performance machine. Built in Ancona under CRB’s Diamond/Cavendish line.
Organ section: Flutes, Clarinets, Reeds, Strings
Presets: Piano, Spinet, Harpsichord
Effects: Sustain and Vibrato (both sound great)
Mini-band (auto-accompaniment)
Drum patterns: Waltz, March, Tango, Bossa Nova, Samba, Slow Rock, Boogie, Disco — all with variable tempo/volume; very much in the vein of early CR-series drum machines.
Bass accompaniment with automatic chords, Free 1-Finger, Memory, and chord quality switching (Major default; Minor/7th via yellow/green buttons).
External output, headphone out
Expression pedal input
Built-in speaker that’s quaint yet surprisingly punchy
UK mains power - we can include a step-up/step-down transformer on request so you can use it in your country without modification, just ask for details."
Tendrils cables #synthesizer #eurorack
video upload by Tomo in der Muhlen
Live modular synth session with BA , VHIKKX SY 05 and Moog Labyrinth
video upload by Tomo in der Muhlen
"Live modular synth session with BA @NoiseEngineering , VHIKKX SY 05 and Moog Labyrinth"
(Video) *Serviced* 1970s Wersi Entertainer Compact German Combo Organ w/ Big Rhythms
Note: links to listings are affiliate links for which the site may be compensated.
video upload by riffers
via this Reverb listing
"Back with another charmer: the Wersi Entertainer—that unmistakable 1970s/80s German home-organ vibe in a slimline, wood-cased package. Heavy, driving rhythm section (like only the Germans can), lush organ tabs, and built-in speakers for instant fun.
Set a tempo, punch in a style (March, Samba, Slow Rock, Waltz, Beat, Swing), and layer chords with Auto-Chord while you hunt melodies on the upper keys. The rhythms are steady and weighty enough to act as a “groove grid,” so song ideas arrive quickly. The on-panel balance/volume lets you sketch arrangements (pad vs lead vs rhythm) in seconds, and the bold, simple voicings sit in a mix without fuss—great for writing hooks, auditioning progressions, or tracking guide parts straight into a DAW.
Features
Voices via coloured tabs: Horn 16', Tibia 16'/8', Klarinette, Perc 8', Vibrato, Auto Chord.
Rhythm presets: March, Samba, Slow Rock, Walzer, Beat, Swing with Start/Stop and Tempo.
Onboard stereo speakers for plug-and-play use.
Rear panel: pitch trim, external amplifier output (DIN), 12V battery input, and external speaker connection.
Compact, wood-veneer cabinet with Wersi badging.
Rear panel: external amplifier out, 12V battery input, external speaker out (2–8 Ω), pitch trim.
Condition
Fully functioning: all keys, tabs and rhythms tested and working. Clean overall with light cosmetic wear consistent with age; see photos for close-ups."
video upload by riffers
via this Reverb listing
"Back with another charmer: the Wersi Entertainer—that unmistakable 1970s/80s German home-organ vibe in a slimline, wood-cased package. Heavy, driving rhythm section (like only the Germans can), lush organ tabs, and built-in speakers for instant fun.Set a tempo, punch in a style (March, Samba, Slow Rock, Waltz, Beat, Swing), and layer chords with Auto-Chord while you hunt melodies on the upper keys. The rhythms are steady and weighty enough to act as a “groove grid,” so song ideas arrive quickly. The on-panel balance/volume lets you sketch arrangements (pad vs lead vs rhythm) in seconds, and the bold, simple voicings sit in a mix without fuss—great for writing hooks, auditioning progressions, or tracking guide parts straight into a DAW.
Features
Voices via coloured tabs: Horn 16', Tibia 16'/8', Klarinette, Perc 8', Vibrato, Auto Chord.
Rhythm presets: March, Samba, Slow Rock, Walzer, Beat, Swing with Start/Stop and Tempo.
Onboard stereo speakers for plug-and-play use.
Rear panel: pitch trim, external amplifier output (DIN), 12V battery input, and external speaker connection.
Compact, wood-veneer cabinet with Wersi badging.
Rear panel: external amplifier out, 12V battery input, external speaker out (2–8 Ω), pitch trim.
Condition
Fully functioning: all keys, tabs and rhythms tested and working. Clean overall with light cosmetic wear consistent with age; see photos for close-ups."
Arturia Introduces Pigments 7
video uploads by Arturia
"Join Alex for a walkthrough of Pigments 7, exploring the redesigned Play View, expressive new filters, the Corroder effect, engine upgrades, and fresh factory sounds - all designed to push Pigments further than ever."
And a couple of supporting member user videos:
What's new in Arturia's Pigments 7? Filters, effects, play view, more
video upload by CatSynth TV
"We take a detailed look at Arturia's newly released Pigments 7, including the updated Play View and the new filters and effects. We also explore several of the new factory presets that take advantage of these features."
00:00 Introduction
00:32 Play View
04:09 Set up a simple sound for filter demos
04:47 Rage filters
09:56 Ripple filters
17:28 Reverb filter
21:23 Corroder effect
28:33 Factory presets
42:27 Conclusion
_________
Please consider supporting this channel to help us bring you more synthesizer tutorials and other content.
Merch: https://shop.catsynth.com
Patreon: https://www.patreon.com/catsynth
Ko-Fi: https://ko-fi.com/catsynth"
PIGMENTS 7 update: NEW Filters and Corroder effect
video upload by DATABROTH
"Read my review of the update here: https://www.databroth.com/blog/pigmen...
Rad my full Pigments review here: https://www.databroth.com/blog/pigmen...
check out my wavetables and presets at https://gumroad.com/databroth
join my Patreon / databroth"
Kraftor hosting Nexus
video upload by Polaxis
"Sentence prepared with https://www.polaxis.be/nexus-serial-m...
and triggered via MIDI using a custom MIDI keyboard designed by https://learn.adafruit.com/usb-keyset"
Info on the USB Chorded Keyset #3dprinting #circuitpython
video upload by Adafruit Industries
"Build a 3D printed USB chorded keyset inspired by the original Doug Engelbert "Mother of all Demos" keyset from the 1960's. This 5-finger keyset lets you type without moving your hand, entering full words and phrases by pressing multiple keys simultaneously as a chord."
The destructive charm of tubes - With Fusion System II
video upload by Monotrail Tech Talk
"Sound design is all about adding detail, flavor, and texture. The Erica Synths Fusion system II is a rather unique synth voice with a lot of interesting ways to add gain and drive, using tubes. In this video I share some personal thoughts about the system, and go over the modules to explore their options."
Timetable:
00:00 – Intro
04:46 – VCO 2
14:20 – VCF 3
18:05 – Modulator
23:19 – VCA-Waveshaper
28:40 – Ensemble FX
Boundary Layer Triple Slew - Schlappy Patching 2025 EP.20
video upload by SCHLAPPI ENGINEERING and Stazma
"Hey there!
Today I'll show you how to patch the Boundary Layer as a triple slew limiter to use with three oscillators to create interesting drifts in tracking.
Have fun!!"
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MATRIXSYNTH - EVERYTHING SYNTH
© 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
