Fender Deluxe Reverb
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The Fender Deluxe Reverb is a guitar amplifier made originally by Fender Electric Instruments which became Fender Musical Instruments in early 1965 when the company was purchased by CBS, and now by Fender. It was first introduced in 1963 by incorporating an onboard spring reverb tank to the newly redesigned Fender Deluxe amplifier.
The Deluxe Reverb is a 22-watt tube amplifier (at 8 ohms), powered by a pair ("duet") of 7408/6V6GT power tubes, one GZ34/5AR4 rectifier tube, four 7025/12AX7 tubes for preamplification and tremolo oscillation, and two 6201/12AT7 tubes driving the reverb and phase inverter circuits. Throughout its production, the amplifier has most often featured a Jensen C-12Q series 12-inch loudspeaker, although Oxford 12K5, Marlboro SE, Utah and Eminence speakers have also been used. The 22 Watt output was obtained by operating the 6V6 power tubes well in excess of their maximum specified operating voltages. While this did not cause problems when the 6V6s were manufactured by USA based tube suppliers such as RCA, General Electric and Philips/Sylvania, it caused significant issues when the USA tube factories ceased production of quality tubes and replacements had to be obtained from the former eastern-bloc countries, who at first were making tubes of very inferior quality. fortunately those same eastern-bloc factories have since improved their quality and workmanship so that their tubes operate with reasonably reliability in the Deluxe Reverb.
The original Deluxe Reverb (circuits AA763, and later AB763) was introduced during the "blackface" era of Fender amplifiers with a black control panel and white lettering. In 1967, two years after Fender was purchased by CBS, Fender began issuing amps with a silver metallic control face and light blue lettering. This gave birth to the "silverface" era, and the Deluxe Reverb followed suit in 1968. The circuit design remained largely unchanged through the ensuing years, and the control face was changed back to a blackface in 1980. The Deluxe Reverb was discontinued in 1982.
The Deluxe Reverb II was introduced that same year. Output on the amp was diminished to 20 watts and a solid state rectifier was used. The tremolo circuit was removed. Gain, master volume, and presence controls were added. And the two channels were made switchable as opposed to the individual inputs on the Deluxe Reverb. The Deluxe Reverb II was effectively a completely different amplifier, and it was discontinued in 1986. This was the so-called "Rivera-era". 
In 1993, Fender released the '65 Deluxe Reverb reissue. It possessed the original cosmetics and circuitry, but was wired on a printed circuit board rather than hand wired point-to-point. The reissue is still currently in production.
In the summer of 2013, Fender produced a limited run of the Deluxe Reverb reissue in the form of an amplifier head. This had never been done in the past, as Fender had only built the Deluxe and its derivatives as combo amps (that is to say an amp with the speaker built in). The limited run only saw a very small number produced. Around the same time, Fender also introduced a redressed version of the reissue with silverface cosmetics and slightly altered circuitry, dubbed the '68 Custom Deluxe Reverb.
- Rebuilding a Fender Deluxe Reverb Tube Amplifier - Includes some very useful modification ideas as well as how to convert the modern Deluxe Reverb Reissue (DRRI) into a full point-to-point Deluxe Reverb.
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