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It was first introduced in and discontinued in The Vibro Champ featured built-in tremolo with controls for speed and intensity. The silverface version served as a basis for the Bronco student amplifier of Aesthetically, the XD is based on the Champ from the blackface era.

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Unlike the Championwhich has a strictly all-tube audio signal path, the Vibro Champ XD's tube circuitry is complemented by a digital signal processor DSP that functions as a pre-amp by modelling 16 different amplifiers. The effect of the volume, gain and tone control knobs varies according to the selected amp model.

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The digitally modelled signal is fed into a class-A single-ended tube circuit, with a 12AX7 output tube driver, and a 6V6 output tube. The amp also comes equipped with DSP effects, including reverb, delay, chorus, tremolo, and Vibratone there is no spring reverb tank.

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Inin order to combat its decreasing amp sales, which at that time was around 10, units per year, Fender hired Paul Rivera of Rivera Amplifiers as Marketing Director to specify and help design a whole new range of amplifiers to meet the contemporary requirements of musicians.

Even though he did not personally create the new designs, his direction of the engineering team, headed by Ed Jahns and Bill Hughes, resulted in some legendary amps, including the Super Champ.

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Featuring a push-pull output, 10" speaker, and spring reverb, as well as some new circuitry; master volume, a switchable extra gain stage for a 'lead' effect, and a mid-boost switch. When the volume knob is pulled, some signal from the 12AT7 reverb driver is re-routed, resulting in higher gain.

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The cabinet was finished in black Tolex, with a black faceplate and silver grille cloth. The Super Champ was sold until Along with the Concert amp, it was the last tube amp to be made by Fender under CBS ownership, and the last to be made at Fullerton.

Introduced along with the Super Champ described above, the Champ II was the most basic of the tube amps in the "Rivera-era" range of Fenders, having no reverb or extra gain switching. It had the same colour scheme, power supply, output stage and stock speaker as the Super Champ but the preamp and phase inverter consisted of two 12AX7 tubes.

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The look is based on the blackface model. The blonde version is no longer available new and Fender has completed the amps' production run so no more will be produced or available from Fender.

Aside from one dual-triode 12AX7 and two 6V6 output tubes, it also has a digital signal processor DSP which models 16 different amplifiers and programs the volume, gain, and tone controls accordingly.

Jun 13,   Dating Fender Amps - Tube chart on the inside of the amp is stamped with two letters (A - Q): The first letter designates the year and the second letter designates the month. A JAN B FEB C MAR D APR E MAY F JUN G JUL [ ]. The new style Champ and Vibro Champ amps featured slanting control panels. All of these amps put out about 4 watts and had a single 8" speaker. These amps, fondly referred to as the "lunch box," were sold by the thousands to students and professionals alike. Immediately popular for studio use, they also found favor from musicians playing. The Fender Champ was a guitar amplifier made by was introduced in and discontinued in An ated version was introduced in as part of the "Vintage Modified" line. The Champ had the lowest power output and the simplest circuit for all of the Fender tube Champ had only one power tube, and the power stage circuit is, typically, single-ended and class A.

It has two channels, channel 1 being a clean channel, and channel 2 having both clean and distortion voices, using modeling technology to provide 15 additional voices. There are two stages of amplification: the first stage is done by solid-state op amps and the DSP, [ citation needed ] which also provide the desired voicing of the amps.

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It is then fed into the first triode of the 12AX7, which acts as a second stage preamp, provides the additional tube gain for both channels and acts as an interface between the solid-state circuitry and the tube circuitry.

The second triode is a phase inverter, which creates mirror images of the signal to drive the output tubes. This arrangement provides the same feel of a complete tube amp while allowing multiple voicing. The DSP chip also provides effects, including reverb, delay, chorus, and tremolo.

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There is no spring reverb tank. Fender reissued the narrow panel tweed Champ in From Wikipedia, the free encyclopedia.

Vibro Champ AA (blackface) A to A - A to A - A to A - A to A - A few books are available for dating Fender amps, which have information on the history of Fender amplifiers. You will need to get the date codes from the speaker frames, the potentiometer date codes, the transformer. Vibro Champ AA (blackface) A to A - A to A - A to A - A to A - Vibro Champ AA (silverface) A to A - A to A - A to A - A to A - A to A - A to A - A to A - DATING EARLY FENDER AMPLIFIERS Dating early Fender amplifiers is sometimes quite challenging. While dating Fender amps made before by serial number is all but impossible (as records of these numbers were never kept), all hope is not lost-the charts below should prove helpful in dating .

This section does not cite any sources. Please help improve this section by adding citations to reliable sources.

This article contains a list of most archived copies of Fender Guitar Amplifier owner's manuals available. Manuals are listed alphabetically by model and have been taken from our archives and conv. The Blackface Champ and Vibro Champ (with tremolo) was introduced in after its presuccessor, the narrow panel tweed Champ, had been produced nine long years at Fender since The blackface model continued the 1?8? combo design and the single ended 6V6 power amp, class A. Unfortunately, good dating information for silverface amps from the s is still lacking and that's why there isn't much new information for amps made from Vibro Champ AA (silverface) A to A - A to A -

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Retrieved My Fender Champ. Premier Guitar. Vintage Guitar.

1975 Fender Vibro Champ Review

Fender Musical Instruments Corporation. Most post tweed Fenders had trannys manufactured by Schumacher. The date is in the last three digits, after the.

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The first of the three digits tells us the last digit of the year unfortunately not decade specific and the last two numbers tell us the week. In the above example, the transformer was made in either orweek This code can be found on the power transformer, output transformer, choke, and reverb transformer. They are all usually within a few months of each other.

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