Rodenberg / GAS-909 + / Effect
Special features:
*True Bypass
*'Long-Life'-foot switch
*Overdrive-, Level- and Tone-knobs
*Bass-Boost - switch
*Upside blending of lasered high-grade stainless steel
*Extremely bright blue Jewel LED
*Power supply by external AC/DC-adapter or battery
*Handmade in small series
*2 years warranty
Sound:
The GAS-909 offers the same technical features as the GAS-808, there is just one remarkable difference: the 909 offers three times more gain resources than the 808!!!
Made out of specially dimensioned and selected components it fits into the existing sound harmonically well without really sounding like an external pedal, but more like a part of the amplifier itself. Being more likely an Overdrive than a distortion pedal the GAS was not created to give you a frequent-twisting overall distortion, it just emphasizes the whole frequenzy spectrum with a good and tasty shot of raunchiness. Perfect for boosting the amplifier sound without loosing or changing its natural characteristics.
On the upside you will find the Footswitch, the Jewel-LED, Tone, Drive and Output Level Controls.
it can't accidently be harmed while stepping on it.
You will also find the knobs for the Drive- and Tone Level on the top of the pedal. The Tone Knob adds or diminishes the highs in the sound, the Drive Knob in- or decreases the overdrive value of the sound.
The Footswitch itself is a true-bypass long-life switch. If the GAS is turned off the guitar signal gets passed through to reach the amp without any loss.The chosen Jewel-LED is of the kind you find on older vintage amplifiers.
With a Switch you find lefthandside the pedal (next to the output jack) you have the opportunity to run the LED intensity in eatherway High or Low Mode. The Low Mode can be helpfull when running the pedal on battery.
Bass Boost Switch:
The Bass Boost switch on the right side of the pedal lifts or lowers the lower frequenzies - the overall sound stays defined without getting muddy.
Jacks:
You will find the Input Jack righthandside and the Output Jack lefthandside the GAS-808. The battery will automatically be turned of when the cable at the Input Jack is plugged off.
External power supply:
On the rear side of the pedal you can find the Jack for an External Power Supply. Its a standard jack (2,1mm). You can use the usual adapters for floor effects (9V DC,+ = outside ring, ground = inside). If an external power supply is connected the internal battery turns off automatically.
LED 'High - Low'- switch:
This Switch dims or brightens the intensity of the Jewel-LED. The brightness is enormous and will help you to see the adjustment of the pedal on an however lit stage. When running the effect on battery we recommend to turn the switch to 'Low'-mode to increase the battery.
Technical Data:
*Input Level: -20dB
*Input Impedance: 1MOhm
*Output Impedance: 10KOhm
*Dimensions (L/T/H (inch)): 2.4 x 4.6 x 1.2
*Weight: 0.7 lbs
*Current - LED 'low': 7mA
*Current - LED 'high':....20mA
*Power Supply: 9V battery or External Power Supply Unit:
*Use 9V DC stabilisized only.
*Polarity: + = outside ring, ground = inside
RODENBERG amplification, Germany 
Hello,
this is Ulrich Rodenberg,let me tell you something about me, my work and products.
At the age of 13 I began to play guitar and used several old tube radios as an amplifier, this
sounded great (lol). Three years later at the age of 16, after 5 weeks of holiday work, I bought my first JCM 800 in 1984. Although it was and for sure is one of the best amplifier they made, the flexibility was very small for me. Because I had some experience in electronic, in fact I loved it, I built in a second master control switchible by stage board. The second step was to built in the circuit board of the real TS-808 for more gain. I played this modified amplifier two years in my band before I began to study how tube amplifiers really work. The very end was that my JCM was divided in pieces, the chassis and the top was gone to waste - how strange!
I used the transformers, choke, caps to build my first main amplifier in 3 rack space. I had just finished my high school exam in electronics and after 3 years more I finished my education as an electrical engineer.
In 1991 I started up my own business building several Pre- and Main Amplifiers, Heads, Combos and did repair jobs and modifications of everything a guitar player can use. In that time my second job was to
develop medical technologie circuits where I learned to work with microcontrollers and IC's - hard and software.
In 1996-98 I introduced my All Tube Guitar Head, with Motor Driven Pots, 200Watts, fully programmable which was called 'The Most Special Amp' at
Frankfurt Fair! After a 5 year break in building amplifiers I went back to business in 2001 to put my experience of the last years into a new amplifier series. During that time in 2005 a friend asked me to build a real good sounding overdrive pedal and it won't take long the whole GAS-Overdrive
family was developed. The top was when Lee Ritenour stumpeled into the GAS pedals and asked me to build the Official Lee Ritenour LR-GAS. I had designed and built this pedal within only 3 weeks and the LR-GAS was ready to use it on Lee's Asia tour in Nov. 2006
All the time I worked on my new amplifier series too, but the main change in my amp design was to built up amplifiers which uses only vacuum tubes in the signal path, no IC's or something else but IC's and microcontroller only for the internal switching system and Midi. In December 2006 I finished this amplifier series which features 5 completely seperate channels with 22 vacuum tubes - really strange.
For those who do not like Big Heads I developed a smaller 3 channel guitar head with 16 vacuum tubes, in fact this is as big as the biggest amps on the market - I cannot do it smaller (lol).
Today, at the age of 41, I can say these are the most flexible and best sounding amplifiers I've ever made! - more to follow...
Ulrich Rodenberg
