Gerlt Technologies makes hundreds of customizable rack effects, at prices comparable to 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 the message is unpleasant.  After figuring how to deal with some of our government’s policy decisions for the past several years, I must finally admit defeat.  It is not feasible to continue operations with the latest round of policy changes.  As recently as a few days ago, I thought it might work out.  Then I was hit with business-ending tariff charges, with more to come.  To be clear, it isn’t just these new Trump tariffs that have beaten me.  Biden-era tariff changes and policies were also difficult to survive.  The cumulative effect is too much.  

As an entrepreneur I take calculated and managed risks.  Sometimes it works out, and sometimes I seem to be shooting at my own feet.  But I can’t survive an economic nuking from my own government.  It’s not just a political disagreement, or differing opinions, theories, or expectations.  It’s a matter of undisputed facts, real dollars.  Gerlt Technologies’ “Game Over” criteria were met this week as those facts became crystal-clear.  I don’t like politics and refuse to take part in it, so I’ll just leave it at that.

Gerlt Technologies will no longer take new orders for our effects.  We do still have our popular 3U Pedal Racks available until our inventory is depleted.  New tariffs on metals will make them too expensive to restock, so get ‘em while we’ve got ‘em!  I have a handful of new modules that I’ll be completing soon.  I’ll still announce them when they are finished, just ‘cause.  We were already contemplating thinning out some of our guitars, amps, pedals, and maybe some components and other gear that have somehow quietly filled up all our available space over the past several years.  We may add some listings for those on the site or perhaps on Reverb in the coming months.  Keep an eye on us if you are interested in some lightly used gear in great condition.  I expect and plan this shutdown to be permanent, but maybe I’ll pop up and take a look around in a couple of years if enough major changes take place in government policy after the mid-term elections.   

It has been a lot of fun!  I enjoyed meeting thousands of you along the way – always the best part of any adventure.  Thank you all, and all the best to you and yours!

Bill Gerlt

President, Gerlt Technologies

26 August, 2025

 

New Module Configuration: Woodstock 108

Published: 25 December 2020 25 December 2020

 

   

Hello, Effects Fans!

Merry Christmas!  I hope everyone is enjoying safe and happy holiday time with friends and family.

Today we announce a new configuration of our Woodstock module, the Woodstock 108.  Our Woodstock compares to the famous Fuzz Face.  Of course there are many types of Fuzz Face circuits available, generally lumped into two categories, germanium and silicon, depending on the transistor technology.  In both categories, several different models of transistors were used.  Some transistors have a distinct character and are sometimes sought out.  The BC108 transistor is a good silicon fuzz transistor, popular in Fuzz Face circuits.  Our Woodstock 108 compares to the basic silicon Fuzz Face, specifically using BC108 transistors.  It compares to the Analogman BC108 Sunface and other BC108 derivatives from some of the other top pedal builders.

This is your standard silicon Fuzz Face design, with lightly tweaked component values, and a Bias control.  If you know what a silicon Fuzz Face sounds like, then you know what to expect.  The BC108 transistors are high gain, making for an aggressive, ripping fuzz.  The gain is pretty high, so with everything maxed, you'll get some noise and maybe some squealing, depending on what you're sending into the pedal and where the output is headed.  We offer a number of options for our Woodstock module, including a Gain control and some noise caps which you may want to consider for high-gain silicon transistors.  Optionally, you can choose one of our other Woodstock configurations and have it built with BC108 transistors.

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

A bunch of new boards have arrived, so keep an eye open for additional modules and configurations to be announced over the coming weeks!