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!

As you might guess, things are going a little slowly for us as everyone shifts into low gear for a while.  But that’s OK – low gear is the most powerful gear!  So we continue to move forward with developing new rack effect modules.  Today we announce the availability of our Little Rock phaser module.  The Little Rock compares to the EHX Small Stone Phaser, one of the most popular phasers of all time since its debut in 1974.  The simple controls and lush, liquid swirl have spiced up everything from jazz, blues, and country to pop, grunge, and rock. 

There have been numerous versions of the Small Stone phaser over the decades.  Our Little Rock compares most closely to v2 and v3, which are the preferred versions for most.  In addition to the simple Rate control and Color switch, we have half a dozen extra options to choose from to tailor it to your likings.

One random note about the different versions of the Small Stone.  Some of the circuit versions look much different from others.  All use several IC chips, but some also have a bunch of transistors in addition to the ICs.  Those extra parts must be doing something, right?  Yes, those transistors are important.  But if you notice carefully, the IC is different in the versions with and without the “extra” transistors.  The difference is that one IC version has those extra transistors already built into the chip.  That was the original early versions of the Small Stone, using CA3094 ICs.  The extra transistors are not needed with the CA3094 (or EHX part number EH1048).  If the other version of the chip is used, the CA3080, you must add those transistors since they aren’t built-in on the chip.  That makes the circuits look completely different, but they really aren’t that different at all.  It is unlikely your ears could tell the difference between the two IC/transistor configs.  The other significant difference between versions involves parts in the LFO section of the circuit.  The audio signal doesn’t go through the LFO, so those differences have no direct impact to the sound.  The LFO gives you the ability to control the Rate (Speed) of the phasing.  Of course, in our usual GT style, our boards are designed to work with either IC/transistor config.  The original CA3094 parts are difficult to find, but we try to keep them in stock.  You can request either IC.

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

It’s difficult to provide accurate time estimates right now, but we have a significant number of new modules winding their way through our R&D process.  The list includes some great effects you probably know and some others you may not have had a chance to try yet.  Watch here for more announcements coming as soon as we can get back to second or third gear!