Hello Effects Fans!

It has been pretty quiet here since my last update, as expected, but not silent!  Earlier today we announced our new 3U Pedal Rack and our new Double Looper configurations.  These two offerings are designed to make migrations to our rack solutions easier, providing more and better ways to continue using your third party rack effects and pedals in an all-rack solution. 

Our status hasn’t really changed much.  You are probably aware that there are some serious supply chain problems in the electronics world.  Those shortages are affecting the availability of many end products from appliances to automobiles, to, yes, Gerlt Technologies rack effects.  We are simply unable to get some critical parts right now.  Projected back order dates come and go with no new parts becoming available.  For us, these are simple, but critical parts used in our circuits.  They haven’t stopped making them or anything like that.  It’s just that they aren’t able to make enough of them fast enough with staff, facilities, and transportation that continue to be impacted by COVID all over the world.  Of course, the small supplies that are made are going to The Big Guys first.  It will be a while before availability trickles down to smaller companies.  That’s just the laws of supply and demand in action.  It will eventually get sorted out, but in the meantime small manufacturers like Gerlt Technologies will just have to wait.  That’s why we stopped taking orders earlier this year.  We plan to be a survivor, not a casualty, of the COVID aftermath.  I still don’t know when we’ll be able to restart, but some of our latest backorder dates for parts will almost certainly push a restart into early next year.

The best news is that live music is back!  Every day I see more and more info about tours and local shows.  I hope that all you professional and gigging musicians are getting more bookings – we’ve missed you!  For all of us that don’t play publicly, COVID has been a nasty reminder about taking our lifestyles for granted, as has been the passing of some great musicians like Dusty Hill and Charlie Watts.  Enjoy your favorite music live (and safely) when you can!

We appreciate your patience with us during our temporary shutdown.  Once things are back to “normal enough”, we’ll be ready to do what we can to earn your business and get you into some excellent rack effects.


Bill Gerlt

President, Gerlt Technologies

Dallas, Texas

26 August, 2021



Gerlt Technologies makes hundreds of customizable rack effects, at prices comparable to regular guitar pedals.  It's time to dump that pedal board and get Your Tone off the floor!


 What We Do

You know them as guitar pedals

We build them as rack effect modules you can customize to get Your Tone

Put several rack effect modules into a 3U rack enclosure

Connect power and audio on the back like guitar pedals, adding connections for remote switching

Add a remote footswitch unit to turn rack effects on and off

Add as many rack effect modules, enclosures, and third party products as you like. Plug in your guitar and amp. Rock it! It's that simple.


Quick Hits:

  • Check out our GT Effects Overview to see why we do this

  • Check out our Compares To charts to see the full list of effects we offer

  • Follow the menus from Products, to Modules, to Modules By Type to get a list of our effect types.  Select any effect type to get a list of all our effects of that type.  Select any effect to get full information including pricing.




Hello, Effects Fans!

Today we announce our new FuzzFazer module.  Our FuzzFazer module compares to the Roland AP-7 Jet Phaser.  The Roland AP-7 Jet Phaser is a classic vintage phaser that combined a fuzz and phaser into an early multi-effect unit.  It was used to get that funky guitar sound in The Isley Brother's hit Who's That Lady?  Also works great with bass, and was used by bass slapper Larry Graham with Sly and the Family Stone and many of his other collaborations, including with Prince.  It was available around 1975 - 1978.  Funk it up!  While it wasn't used by Keith, it gives you a nice tone for the Some Girls album. 

The sound wasn't the only funky feature of the Jet Phaser.  The controls on the original unit were a bit funky.  There was a Jet Level that controlled the volume, but only when the fuzz was on.  A Resonance knob controlled feedback in the phaser portion of the circuit.  A Slow Rate knob let you adjust the rate of the phasing, when it was on the Slow setting.  There was a footswitch to turn the effect on and off.  A second footswitch changed between Fast and Slow phaser settings.  Then there was the Mode switch.  You could switch between six different modes.  The first four modes were combinations of bright/dark fuzz and two phaser presets.  The other two modes had no fuzz.  They were phaser-only settings.

Our module stays close to the original pedal design, but we changed up the controls to provide a wider array of settings than the original six modes.  The original modes are all still there in the new controls, though.  The original also had a fixed tone stack for the fuzz circuit, which offered only "dark" or "bright" settings in the four modes that had fuzz.  We've replaced that with a simple Tone control.  At the two extreme positions of the knob, you get the old tone settings, but with much finer control in between them.  Four of the original modes were fuzz plus phaser and two were phaser only.  But you couldn't get just the fuzz without the phaser.  Our controls allow that.

We offer a number of control options for our FuzzFazer.  We leave the base tone alone and just allow you to dial in more of it.  

You can see the details about our FuzzFazer module at: FuzzFazer.  Or look for it in the Phaser Modules section under Products -> Modules -> Modules By Type.