The Champ
By 1955 Fender started putting its amps in the "Narrow Panel" tweed cabinet with a plastic oxblood color grill cloth, and by this time the Champ was officially named the Champ (model 5E1). Through 1957, Champs only had a six inch speaker, but the 1958 model 5F1 featured an 8". The 5E1 and 5F1 circuits used a 12AX7 dual triode in the preamplifier to provide two stages of voltage amplification, and a single 6V6GT power tube to produce about 5 watts. A Champ from this era can easily be dated by the code stamped on the tube chart, by the code stamped on the speaker or by its serial number.
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