Blackface, early 1965 with "Fender Electric" text on control panel, piggyback head and cabinet with all mounting hardware and tilt-back legs, 50 watts from two 6L6s, 2x12" loudspeakers in a sealed cabinet, two channels,...50-watt Marshall head, the Model 1986, bass variant of the 1987, plexi panels front and back, small box, lay-down mains transformer, black levant vinyl, gold piping, repro logo, Bulgin AC mains socket replaced with modern IEC, small...
However, tubes are still used in several specialized applications such as guitar amplifiers (also called a valve amp outside the U.
S.) and high power RF transmitters, as a display device in television sets and in microwave ovens.
Leo Fender began building guitar amps before he started manufacturing guitars.
The first of these amps were the K&F models, which were produced between 19.
They included the Model 26 Deluxe, the Princeton, and the Professional.
Fender amplifiers began making a name for themselves with the Tweed series, so called because of their cloth covering, which is actually varnished cotton twill (tweed is a coarse woollen fabric, commonly used for jackets, coats and caps; it is often woven in a twill pattern, which is likely the reason for the confusion over naming.) They were produced for more than a decade and are now eminently collectible and praised for their sound quality.Vacuum tubes, or thermionic valves, are arrangements of electrodes in a vacuum within an insulating, temperature-resistant envelope.Although the envelope was classically glass, power tubes often use ceramic and metal. For most purposes, the vacuum tube has been replaced by the much smaller and less expensive transistor, either as a discrete device or in an integrated circuit. and Canadian English) or (thermionic) valve (outside North America) is a device generally used to amplify, or otherwise modify, a signal by controlling the movement of electrons in an evacuated space.It won't switch the graphic in/out because there isn't a button for that! I guess I could rewire it so that the effects loop button activated the graphic instead.