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Electro-Harmonix RTG Random Tone Generator Guitar Effects Pedal   

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A faithful reissue of a rare EHX synthesizer first introduced in 1980. The palm-sized synth produces wild, randomly changing tones over a four-plus o...Read More

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A faithful reissue of a rare EHX synthesizer first introduced in 1980. The palm-sized synth produces wild, randomly changing tones over a four-plus octave range. Creates sensational soundscapes, especially when used with other effects!

Create brilliant, wild sounscapes with this awesome reissue of a classic.

  • Rate knob controls the speed at which the tones are generated
  • Glide switch adds portamento or a glide between pitches
  • I/O is super simple with just a ¼" output jack
  • A footswitch turns the RTG on or off and an indicator LED alerts the user to its status

Inspire your sound. Order yours today.


Review Snapshot

by PowerReviews
Electro-HarmonixRTG Random Tone Generator Guitar Effects Pedal

(based on 2 reviews)

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(2 of 3 customers found this review helpful)


Sweet little pedal, but TOO LOUD!


from Tulsa, OK

About Me Professional Musician


  • Fits On Any Pedalboard
  • Unique Effect
  • Very Fun Noise Maker


  • No Input
  • No Volume Control
  • Too Loud

Best Uses

    Comments about Electro-Harmonix RTG Random Tone Generator Guitar Effects Pedal:

    Once I saw this thing and heard what it does I had to get it, and at a nice price. I have a Pedaltrain Grande and it has no extra space on it, so I have a lot of pedal; TC Electronics Trinity Reverb, Vox Delaylab, Strymon Mobius, Line 6 FM4, EHX HOG2, Gig FX Chopper, Boss Harmonist, Hexe BitCrusher II, (which is an 8 bit digital distortion pedal) to name most of them, or at least the ones I was most excited about running the RTG through.

    One problem guitarist like me might have is there is no input, so you need a bypass looper or line selector pedal if you wanna switch between your guitar signal and the RTG. I have a 4 channel true bypass looper, so this wasn't an issue. I just put the RTG into the first channel, and I can switch it on whenever.

    I turned it on and it way too loud. I assumed there was an internal gain control I could adjust the volume to match my guitar, but turns out there's not. At least I didn't see one, and the manual didn't mention one. So I ran it through a low gain overdrive pedal with the gain set very clean and the volume set so my ears wouldn't bleed, then I went to town with my effects. Time flies when you're having fun and what felt like 20 mins playing around with the RTG turned out to be an hour.

    This pedal is a must have for any effects enthusiast, it's the perfect toy if you like to tweak your effects while their running. Making effects noise usually means hitting your guitar every time the signal's dying down. The RTG generates it's own signal, so you can just turn it on, put you guitar behind you, and start twisting knobs. The RTG is easy to understand. Rate for speed and a Glide switch, which is a cool function. Basically instead of jumping from one note to another it rises and falls into the next pitch, or "glides" into it. It's kinda annoying on faster settings, but slower settings sound pretty cool.

    So the volume issue for me was a disappointment. I was hoping I could switch it on in between songs or use it for some kinda spacy Mars Volta-esque bridge. Hopefully someone out there will put out a mod to fix it. I'm not too good with that stuff, but I think the solution would be as simple as mounting a volume pot into the pedal and wiring it between the output and the RTG circuit board.

    As the pedal stands in it's stock setting, I can't use it for playing unless I mess with my distortion pedal's setting with would be a pain to do every time I want it on. But it's still fun to play with.

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    (0 of 1 customers found this review helpful)


    The possibilities are endless!


    from Highland Village, TX

    About Me Experienced

    Ask me a question

    Verified Buyer


    • Excellent Sound Quality
    • Unique
    • Versatile


    • None

    Best Uses

    • Amateur Recording
    • Events
    • Mobile DJ
    • Performances
    • special effects
    • Stage Productions

    Comments about Electro-Harmonix RTG Random Tone Generator Guitar Effects Pedal:

    This is the strangest pedal I own, and it's not really a pedal. It sounds great when running straight into a PA, and sounds even better when you pass the signal through another effect or effects. At slow speeds with the glide function on you can get bass notes that shake the room. I'm going to incorporate the RTG into our stage show but I'm not sure how yet. My cat loves it too for some strange reason!

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