SKU: 50830195393

Keeley Electronics Bubble Tron Dynamic Phaser Flanger

Sale price$179.99 Regular price$199.99
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Description

Keeley Electronics Bubble Tron Dynamic Phaser FlangerMaker: Keeley Electronics Model: Bubble Tron Condition: New Description: Robert Keeley and his crew are fans of Zappa. Rabid Fans. This pedal explores some of the famous, but very hard to find sounds of the past. Keeley Engineering has created another batch of Neo Vintage effects that never were. This time Keeley has made the Flanger and Phaser in dynamic with your pick attack and strength. Then add the Random Stepped Filter with the new M Style Synth

Maker: Keeley Electronics

Model: Bubble Tron

Condition: New

 

Description:

Robert Keeley and his crew are fans of Zappa.  Rabid Fans.  This pedal explores some of the famous, but very hard to find sounds of the past.  Keeley Engineering has created another batch of Neo-Vintage effects that never were.  This time Keeley has made the Flanger and Phaser in dynamic with your pick attack and strength.  Then add the Random Stepped Filter with the new “M-Style Synth” bandpass  shaping feature, and you have a lead guitarist’s dream tool.  Shut up and play your effect pedal!  Yeah, you play this thing like an extension of your mind and fingers.

The Keeley Bubble Tron Dynamic Flanger Phaser and Random Synth Filter has three modes of operation.

The Flanger section of the pedal draws on inspiration from the MicMix DynaFlanger.  This incredible piece of gear was used by FZ to create many of the sounds in the late 70s to mid 80s  where a dynamic flanger was used to get envelope based flanging in his solos.  A dynamic flanger is one that starts and stops based on your pick attack or envelope.  The word envelope is used because if you were to measure the “weight” of your guitar signal and put it in a storage container (the “envelope” is an imaginary capacitor) it can then be used to control another part of the circuit.  The Bubble Tron uses your playing to start and stop the flanger.  Most flangers just cycle around and around and you can hear that swooshing in the background.  Not in this case, it only cycles as you play.  Many flangers offer only positive or negative feedback.  This one allows you to try either with the FDBK Control.  The negative feedback sounds more vocal like and hollow to my ears while the positive feedback is more conventional and has a thicker, smoother sound.  The Sensitivity Control allows you to set how delicately you want to play and have the flanger go fully crazy on you.  You can set for crazy silverback gorilla flange or easy flangin’ on Sunday morning.  The Depth Control is just that, how deep you want the flanging to be.

The DynaMoPhase section of the Bubble Tron is actually two phasers.  One has an LFO that you set the speed of with the Rate Control (while it’s depth is dynamically controlled) and the other is a true Dynamic Phaser.  It starts and stops based on your pick attack.  Again, you can set the Depth and and Sensitivity of this phaser to give you a very watery sound that is all based on your guitar’s signal.  You can turn off the standard phaser and just run it DynaPhase by turning the Rate Control off.

 

The only effect that isn’t dynamic is the Filter Section of the Bubble Tron Dynamic Flanger Phaser.  With the Filter you can control the different ramps or random nature of the pedal with the Shape Control.  The very exciting part of this pedal is the Sensitivity Control which is actual like a vintage synth style bandpass filter control.  It shapes the bandpass filter on the filter and gives you some incredible keyboard like sounds.

 

One very nice side effect of dynamic based effects is that they don’t produce the constant, swooshing sound of LFO based effects.

If you’re a lead guitar player that likes to explore and has never had the kind of expression or dynamics from your sound effects that you have in your mind, this is for you.  If you are a sound-experimentalist, this is for you!  The sounds are nearly endless in that your input shapes what the effect will do.

The Bubble Tron Dynamic Flanger Phaser is made in Edmond, Oklahoma by rabid Zappa fans.  It was Designed and Engineered by Aaron Tackett, Craighton Hale and Robert Keeley.

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      SKU: 50830195393

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      CL Lucas
      Birmingham, US
      ★★★★★ 5
      My Dogs Fought Over These!
      Size: Large, Color: 6 Packs, Size: Large, Color: 6 Packs
      Pack of 6. I specifically ordered a pack of them so each dog would have their own. They still fought over them. lol I only see two of them now because they have hid them from each other. So far, they are holding up well. Heavy enough to toss to them but light enough not to hurt them. Loved the variety of colors. Only issue I have is they are a little small for my mastiff but still giving it 5 stars because the ad stated it was for medium dogs.
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      Reviewed in the United States on March 11, 2026
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      Kindle Customer
      Chelsea, US
      ★★★★★ 4
      Great selection
      Size: Large, Color: 9 Packs
      They're not as big as advertised but they worked for what I wanted
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      Reviewed in the United States on May 28, 2026
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      Duval Chad
      Fort Morgan, US
      ★★★★★ 5
      Pawesome variety box!
      Size: Large, Color: 9 Packs, Size: Large, Color: 9 Packs
      I’m a big fan of this box of tug toys. My dog loves to chew and play tug-of-war, and these have been a great fit for him. The quality is solid, and one box typically lasts us around 6 months. He’s now 3.5 years old, so he doesn’t chew as aggressively as he used to, which helps them last even longer. You get a great variety in this box. It’s honestly like Christmas for him every time I bring out a new toy. I usually grab a couple and let him pick. The different shapes and sizes keep things interesting, and he enjoys all of them. The toys are lightweight but very durable, even for an aggressive chewer like mine. The material is made of thinner rope strands, but they’re tightly woven, which makes them ideal for both tugging and chewing. I also think the texture helps with his teeth and keeps them a bit cleaner. I do keep an eye on them once they start to unravel, since I don’t want him swallowing loose strings. That said, it takes a while for him to break them down, so I’m comfortable leaving them with him when I’m not home. I’ve bought several of these boxes over the years. For the price, it’s a great value—about the same cost as a single tug toy at most pet stores. My dog is about 55 lbs, and these are a great size for him. Even the smaller ones get a lot of use. His favorites are the looped ones and the ones with balls—he gets excited every time I pull one out. I’ve tried other tug toy variety packs, and they don’t compare to this one. If you’re looking for a reliable variety pack for your dog, I’d recommend this one with confidence.
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      Reviewed in the United States on May 1, 2026
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      Tabetha Dawn Justo
      Waukegan, US
      ★★★★★ 3
      Revenge is sweet
      Size: Large, Color: 14 Packs
      The package arrived promptly. The puppy was ecstatic. She leaped into the pile of toys and went crazy. She tore through one after another. In mere minutes she devoured everything in sight. They never stood a chance. Within an hour or two she had consumed the entire pile of toys. Not to worry they had their revenge. She puked multi color string for days. Overall the toys were fun just not durable.
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      Reviewed in the United States on June 7, 2026
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      Wrench01543
      Fort Morgan, US
      ★★★★★ 5
      Very very durable
      Size: Large, Color: 9 Packs
      So after spending quite a bit of money on toys for a 1-year-old long-haired dachshund because she's a very aggressive chewer I took a chance and bought this rope set and it's been 2 months she still has all her ropes everything I must say this is a very durable set well worth the money well worth the play time she loves tug of war these ropes are great for tug of war she has not chewed through any of them she has tried to take them apart which she had succeeded on one but I put a few knots in it and other than that I would recommend this rope set to anyone that's got a dog that likes the fat especially play tug of war or is a very very aggressive sure
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      Reviewed in the United States on May 14, 2026

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