Quatrain and Boost - Delay pedal feedback patch

video upload by DecadeBridge

"Quatrain comes with Boost. A dirty pre-amp/distortion effect.

Boost can be used with Quatrain to create a feedback oscillator.
Here I'm using them and two cheap guitar delay pedals to create a variety of drones, noise and texture patches."



via DecadeBridge

Quatrain ships with Boost which is a dirty preamp/distortion effect that can also be used with Quatrain to create a feedback oscillator.

knob style and colour may vary depending on stocks.

Quatrain is a passive 4 x 4 Matrix Mixer that can be used in a eurorack system or standalone. It allows you to mix CV or audio signals together and then adjust the amount sent to the 4 outputs using the 16 pots.

Quatrain is passive and draws no power from your eurorack system.
Eurorack size - 24 HP

Features:-
4 inputs for Audio, CV or feedback paths (4 switched inputs for rows 3 and 4).
4 Outputs to route the input signals to.
4 x Linked attenuators to change the amount of the signal sent to two outputs with a single pot.
16 Attenuators.

Mute switches for inputs and outputs.
Compatible with eurorack dimensions.

When using with a eurorack system the back plate doubles up as a blank panel with some gorgeous artwork from https://www.instagram.com/jack_sl0w/

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Webcor Music Machine Sankei Entertainer TCH-8800 SN 90900031

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"This is a super un all in one oddity that only the 1970's could produce. If you are not familiar with these, take a closer look. Its an AM/FM radio, an organ w/vibrato, a tape player/recorder, it has a built in drum machine, and the antenna contains a microphone in the tip. You can play the organ and drum machine together while singing through the mic.

Everything works, but the tape deck will need cleaned as it runs slow. I tested it with a tape, and it plays and passes the audio signal just fine. However, the speed is slow and the fast forward/rewind motors are slow. I sprayed the spindle areas with contact cleaner and it helped somewhat, but I think it needs cleaned/lubricated.

The volu
me knobs were a bit scratchy when I first tested everything. I hit them with contact cleaner and they are currently working just fine, but I'm not sure if they will remain this way until the pots are actually cleaned.

This thing is SO much fun, and it has a unique and warm sound."

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Yamaha CS-60 Polyphonic Synthesizer w/ MIDI Mod

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"Yamaha CS-60 Polyphonic Synthesizer in great condition with MIDI 5-pin mod. It works great and was serviced in January 2024. It was tuned and all switches, jacks, and controls were cleaned."

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Floyd Engels Theremin Stringless Cello Replica

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"For sale is a very rare Floyd Engels Theremin Cello with custom tube amplifier. It's in excellent shape and fully functional. This is a modified replica of Leon Theremin's Stringless Cello from the mid 1930's made by Floyd Engels in 2011. Apparently only 10 of these were ever made, you aren't likely to see another one for sale again, grab this unique piece while you can!"

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Wavefront Classic Theremin Wood Synthesizer Cabinet Zero Prototype

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"For sale is a custom one-of-a-kind Wavefront Classic Theremin, cabinet "zero" prototype, Serial #C/A-000-0615-GOTYE custom made for Gotye. From original owner, private home studio. Gotye delivered this unit to our store personally. It's in excellent shape with very minor signs of wear (one small nick on the front wood not shown in the pictures due to being on display in our store, can likely be touched up by new owner if desired). Fully functional. This is a beautiful custom built Theremin synthesizer and great collectible."

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Arp Quadra Serviced Keyboard Synthesizer

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"Rare vintage Arp Quadra synthesizer keyboard that just got back from a full servicing by Synthchaser. Work included a complete re-cap, new slider pots (which can be led activated at a later stage if desired), new touch panel membrane and keybed refurb. It's fully functional and good to go. We have a long demo video made by Synthchaser we can share on request. The only issue worth mentioning is the lower transpose button is not working, but the upper transpose button does work and performs the same action. We have sold Arp Quadra's in the past for $12k - $15k and it's been a couple years since we last listed one for sale. These are very cool vintage analog synths."

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ARP Odyssey MkIII Model 2823 SN 28230028

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Yamaha DX100 FM Synthesizer Keyboard

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Roland TR-909 Drum Machine

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The OP-XY Just Blew His Mind

video upload by Ricky Tinez

"I get it now.. The Magic of the OP-XY Is in the wild sequencing features it has. Step components, sequenceable punch-in fx, chord transposing, all that and more. So today I'm showing you how I made one of my coolest tracks just trying to learn these features while reading the manual."

00:00 Yo!
00:25 The song and what we're covering.
01:17 Step 1: Step Components
02:51 Step 2: The Maestro effect
04:14 Step 3: The Brain Transposer
05:10 Part 4: Punch-In Effects
06:30 This is kind of weird tho :/
07:39 Part 5: Song Mode
08:52 Laust In the Sauce

Check with dealers on the right for availability.