Clank Uranograph Works #1 - Rise | Francesco Gennari

video upload by Clank

"A solo performance on the Clank Uranograph.

Uranograph Works is a series of live performances on the Clank Uranograph played by Francesco Gennari, exploring the instrument's full expressive range across different contexts and sonic territories."

Access Virus A - "Modular Animations" Soundset

video upload by LFOstore

"Welcome to the most vintage sounding famous red synthesizer - Access Virus A!

Soundset working with all Virus models including Osirus & Ostirus
Note that presets will sounds a bit different due dufferent architecture
between models.

The most fat & tactile sounds among all Viruses.

And our soundset "Modular Animations" with 50 organic presets!

BUY: https://lfo.sellfy.store/p/access-vir...

This soundset working with VIRUS A,B,C, Osirus & Ostirus and based on previously released “Cinematica” minus reverb & unison options cause there are
no reverb in Virus A.

This unique soundset – contains 50 unique sounds:

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Roland TR-505 Rhythm Composer Drum Machine

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via this listing

Additional Perfect Circuit listings

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Roland Botique D-05 Linear Synthesizer

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via this listing

Additional Perfect Circuit listings

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Korg EX-800 Programmable Polyphonic Synthe Module

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via this listing

Additional Perfect Circuit listings

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ARP 2600 Owners Manual 2601 Instruction Book

Note: links to listings are affiliate links for which the site may be compensated.

via this eBay listing

Additional Tone Tweakers Listings

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Sequential Circuits Prophet-5 Rev 3.3 Midi Analog Synthesizer + case “Serviced” SN 3280

Note: links to listings are affiliate links for which the site may be compensated.

via this eBay listing

"Fresh service done by Greg Montalbano of Analog Synth Service in Oakland CA. (6/29/26)

Service done :

Routine service (replace bypass caps, battery; clean pots, switches, key contacts; load factory patches; tune & scale; replace power cord)

Replace 2 j-wires:

Replace voice 4 CA3280:

Replace voice 2 CEM3310:

Rev 3.3 memory upgrade:

This is originally a 3.2 upgraded to 3.3.The photo shows the old power cord. Update : The last 2 photos shows the new power cord as installed by Greg."

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synthesizer-service.de: Test after service & repair: ARP 2600

video upload by Jörg Schaaf

"I have been offering a synthesizer repair service since December 2025. While I had previously only occasionally breathed new life into the odd instrument, the closure of Radikal Technologies GmbH sparked a desire to find a way to continue pursuing my passion for synthesizers. When you have been personally involved in synthesizer development, the repair process constantly triggers moments of déjà vu alongside new insights. That exciting moment when an instrument is finished and invites you to play it again makes up for the days of work often poured into it.

This ARP 2600 had a variety of issues. The keyboard was in poor condition—with some broken contact springs—the voltage processor wasn't working, the oscillator scaling was terrible, all the faders were scratchy, and tuning the oscillators was an ordeal.
But time and love heal all wounds. Doesn't it sound great? The ARP 2600 is an absolute classic, and its sound possesses plenty of character, warmth, and precision.

https://www.synthesizer_service.de"

Jörg Schaaf was also the man behind Quasimidi and now Radikal Technologies.

MARS Vacuum-Tube Synthesizer: The Most Aggressive Modern Synth I've Ever Tested

video upload by Vulture Culture

0:00 Intro Jam
2:17 Mono Mode & Basic Oscillator Shapes
4:16 The Vacuum Tube Filter
7:49 Duo Mode / Polivoks-Style Duophony
8:47 Poly 1 Mode / Korg Mono/Poly Behavior
10:47 Ensemble Mode & Supersaw Sounds
14:14 LFO Shapes, Retrigger & One-Shot Mode
17:31 Sample & Hold Filter Modulation
20:16 FM Synthesis Overview
29:00 Pros & Cons
37:43 Closing Thoughts

"What happens when you build a vacuum tube-based hybrid synthesizer in a Soviet space lab and send it back from the future? Today we’re demoing, reviewing, and explaining MARS from Eternal Engine Electronic Musical Instruments — one of the strangest, most beautiful, and most aggressive modern synthesizers I’ve ever played.

MARS is often described as a four-voice polyphonic tube synthesizer, but architecturally it’s more accurately a paraphonic synthesizer. The four digital oscillator voices can be played across multiple notes, but they all share the same tube-based filter and vactrol-based amplifier. That puts MARS more in the tradition of instruments like the Korg Mono/Poly and Formanta Polivoks than a conventional analog polysynth.

In this video, I walk through the full architecture of the Eternal Engine MARS: the digital oscillator section, mono / duo / poly voice modes, pulse-width modulation, ensemble mode, FM synthesis, modulation matrix, envelopes, LFO, sample & hold, the gorgeous Nixie lamp interface, the resonant vacuum tube filter, and the asymmetric tube overdrive that gives this synth its raw, snarling character.

This is not a safe, polite, modern analog synth. MARS is boutique, unusual, heavy, beautifully built, and absolutely vicious when pushed. The tube filter and drive section give it a sound that feels alive in a way most modern synthesizers don’t — somewhere between vintage analog synth, industrial bass machine, experimental sound design box, and Soviet sci-fi artifact.

If you’re into industrial music, EBM, darkwave, synthwave, experimental electronic music, vintage synthesizers, boutique synths, tube distortion, paraphonic synthesis, analog filters, FM basses, PWM pads, or Polivoks-style aggression, MARS is worth hearing.

I also talk through who I think this synth is actually for — and who should probably pass on it. Because while I absolutely adore the sound, MARS is not a cheap “do everything” synth, and it’s not trying to compete with mass-market analog polysynths. It’s a character instrument. A monster. A special machine for people who want something truly different."

Erica Synths Bullfrog Drums - Sampling Drum Machine & Sequencer

video upload by Group Technologies Australasia

"GT Lab reviews the new Bullfrog Drums from Erica Synths, a versatile sampling drum machine made in collaboration with Richie Hawtin."