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GUITAR TONE IS ROCKET SCIENCE!—Vintage, high voltage, vacuum tube technology harnessed to create radical effects pedals!

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Displacement activities: Modding a Fender Champ 12 Amp

Fender Champ 12 combo front panel

Although the Delta-Trem and Phaseomatic designs are drawing to close, there’s still some head scratching needed to get the tap tempo calibrated on both these pedals. To relax I decided to tweak-up the tone of a Fender ‘Champ 12′ amp we recently purchased for use as a rig for audio testing the subminiature tubes that are fitted in our effects pedals. Read on to discover how a just a handful … Read More →

A window through time – Sylvania’s first radio tube factory

The first Sylvania radio tube factory in Emporium, Pennsylvania

From this small factory at Emporium, Pa. the first Sylvania radio tubes were shipped on Thanksgiving Eve, 1924. It was built in 1906, by Sylvania’s parent company, the Novelty Incandescent Lamp Co. If you own a PC-2A compressor or any of the other small Effectrode pedals fitted with subminiature tubes then you have a tiny piece of American (Sylvanian!) history beneath your feet. Although the subminiature tubes utilised in our … Read More →

But being as this is a 7550 dual triode, the most powerful subminiature tube in the world…

7550 and 6021 subminiature tubes

…and would blow your speaker cones clean off, you’ve got to ask yourself one question: “Do I feel lucky?” Well, do ya, punk? Well, that’s exactly what I was asking myself when I purchased a small batch of these fantastic looking devices off Ebay. The seller had described them as a replacement for 6021 subminiature dual triode tubes. Interesting! Effectrode utilise subminiature tubes in our PC-2A compressor and other small … Read More →

Our Leveling Amplifier is one of “Best Guitar Effects” pedals of the Year!

The Ultimate Leveling Amplifier

Our new Leveling Amplifier has been selected by “Best Guitar Effects” as one of their pedals of the year. This is real honour as these guys really do know their stuff when it comes to guitar effects – their pedal reviews are arguably the most comprehensive and in-depth you can find leaving no stone unturned. We’re now working on building another batch of Leveling Amplifiers and anticipate Best Guitar Effects … Read More →

Merry Christmas!


We’d like to take this opportunity to express our sincere gratitude to all the guitarists, sound engineers and musicians that have supported us. Thank you for your trust and belief in us – without you Effectrode wouldn’t be Effectrode! Wishing everyone peace and prosperity in the New Year. Phil & Sam

Secrets of the Tube Alchemists


[The photograph above shows a jar of barium carbonate and pure nickel ingots—the essential ingredients required to make a tube] Well not so much alchemy as chemistry, and physics too, and, even worse, maths. It turns out all those mind numblingly boring subjects my teachers worked so hard to drum into me during my school days are of vital significance to guitar tone. But as an 11 year old boy, … Read More →

Blackbird Nominated best Drive Effects Gear of the Year Awards

Gear of the Year Guitarist Magazine

We’re delighted that ‘Guitarist’ magazine have picked the Blackbird vacuum tube preamp for The Best Drive Effects Category. They said, “It’s exceptionally quiet with almost inaudible hiss and hum levels. The drive effects cover the full spectrum of vintage and modern tones, going from Dumble-like smoothness to a more aggressive bite with practically endless sustain.” The Blackbird preamp raises the bar to an unprecedented new level – guitarists now have … Read More →

Five Fast Facts About the PC-2A Compressor


The PC-2A is the ‘go-to’ compressor for guitarists Adrian Legg and David Gilmour. In fact Adrian and David’s tech (the other Phil Taylor) were involved in audio testing the PC-2A in it’s early days. You can hear the PC-2A’s signature smooth, velvet sound on their albums and the Pink Floyd’s latest album “The Endless River”. The PC-2A utilises a tiny vintage tube to do its stuff. These tubes were manufactured … Read More →

How Tubes Work in Plain English


The purpose to this short post is to explain how a vacuum tube (electronic valve) works in no nonsense, straightforward terms. Here goes… We all understand how a flashlight works. When it’s switched on an electrial current (electrons) flows from the battery through the thin metal wire (the filament) inside the glass lightbulb causing the filament to heat up and emit light. Light is actually composed of particles called photons, … Read More →

What? Mullard Tubes made in India


Mullard’s empire had a long and mighty reach. Not only did they build advanced tube manufacturing facilities in Blackburn, Southport, Mitcham in Great Britain, but also set up tube plants overseas in Holland, France, and even the distant shores of Japan (Matsushita), Australia (Philips Miniwatt, Hendon, Alberton) and India (BEL, Bangalore). These ‘foreign made’ tubes were manufactured utilising Dutch Philips/Mullard British-supplied tooling and expertise (“transfer of Technology” or “TOT”), which … Read More →