A vintage ARP 2600 arrived with one of the most impressive power supply failures I’ve encountered. It was making a loud mechanical hum—not through the speakers—and the cause was one of the most spectacular component failures I’ve seen. In this video, I track down the fault, repair the damage, and return this classic ARP 2600 to proper working order.
The Oberheim DS-2 Digital Sequencer was the first product from Oberheim Electronics, introduced in 1974.
In this video, I take a look at this historically significant instrument, explain how it works, and demonstrate its capabilities. While many sequencers of the era were simple analog step sequencers, the DS-2 was a remarkably advanced digital system capable of recording and playing back sequences of up to 144 notes via CV/gate.
Repair and servicing of the white noise generator and ring modulator circuits in a vintage ARP 2600 synthesizer. This video covers fault diagnosis, circuit tracing, and repair work to restore proper operation of these sections.
I pulled a pile of broken rackmount Oberheims out of my storage and got down to repairing them to make them ready for new homes. I’ll show you around the inside of these synthesizers and we’ll troubleshoot and repair a variety of problems… Doesn’t boot at all, boots but no sound, makes sound but has dead voices, and voice is alive but incorrect pitch.
The Moog Sonic Six is a rare, portable analog synthesizer with classic Moog tone and ladder filter, featuring dual VCOs, ring modulation, and a built-in speaker—all housed in a rugged suitcase-style design perfect for studio or stage. Its unique sound-shaping capabilities including X/Y modulation, configurable keyboard modes, and vintage character make it a prized collector’s piece and a powerful tool for experimental or classic analog synthesis.
In this video we take a functional tour and explore exactly how the Sonic Six works and what it can do.
01:32 Direct Output Mixer
02:50 Oscillator A
05:15 X/Y Waveform Generators (LFOs)
09:31 Oscillator B
11:40 Keyboard Modes
15:07 Ring Modulator
16:30 Contour Generator & Articulator (Envelope Gen & VCA)
In this edge-of-your-seat exciting installment of the Synthchaser synthesizer repair video series, your host Synthchaser undertakes the repair of a vintage Oberheim Two Voice Synthesizer that is suffering from a dead SEM (Synthesizer Expander Module, or “voice”).
Parts, service and synthesizers available on my website. I buy broken synthesizers!
New video! A vintage ARP 2600 arrived with one of the most impressive power supply failures I've encountered. It was making a loud mechanical hum—not through the speakers—and the cause was one of the most spectacular component failures I've seen. In this video, I track down the fault, repair the damage, and return this classic ARP 2600 to proper working order. ... See MoreSee Less