Roland Juno-106 w/ Gravitational Slingshot Chips Overview + Demo

Today I got a special package from Syntaur, the USA distributor of Analogue Renaissance products. It's a set of six 80017A-GS VCF/VCA replacement upgrade chips for the Roland Juno-106 synthesizer. What's involved to install them? How do they sound? I'll demonstrate - but you be the judge!

0:00 Talking
- What are the Gravitational Slingshots?
- What I did to prepare for installation.
- A word on testing/calibration: it's absolutely required
- A minor caveat about my particular synth.
4:17 Audio Demos
- Listen to this w/ some nice headphones.

Audio recorded direct to Tascam DR-05
No additional effects.

Roland Juno-106 + Eurorack DEMO [Tesla Coil]

The Juno-106 has landed once again in the studio. I put together a little sequence on the BSP. And a warm saturation bassline in Eurorack.

Juno-106 | Timefactor | Big Sky: Arpeggio and swells
2xADSR | 4023 VCF (self resonance): Kick
Synth Box | JP6-VCF | 2xVCA | 106 Chorus module: bass line
Transistor-82 | Spring Tank Reverb | EMW VC Pan: Percussion
Modulations/Triggers: Batumi, Varigate4

Recorded live in 1 shot to Tascam DR-05
Some post processing in Cubase 7.

Announcing 4023 VCF - an ARP Odyssey MK-I Filter Eurorack Adaptation

Here it is - the mystery module presented yesterday at the Dallas Synth Party.

The 4023 VCF is a no-compromises Eurorack filter adaptation of the MKI ARP Odyssey synthesizers that boasted the colorful 4023 module. Slim. 8HP. Elegant beauty. Don’t be fooled by this early 2-pole 70s design, it retains bass power at higher resonance very well, and can self-oscillate with a robust sine wave when you top out the Resonance.

This 4023 VCF adaptation as close to the original as possible including Rochester re-issue CA3080 OTAs struck from the Intersil masks, matched discrete TO-92 transistors, 2N5459 FETs, a temperature compensation resistor for frequency stability, and six 20mm Alpha slide potentiometers inspired by look of the original. Per usual, when the input sliders are above 75% it will overdrive the filter input for some lovely saturation. 4023 VCF has the classic ARP vibe you’re seeking in spades.