Dating fender amps tube chart


12-Apr-2019 08:18

If you see any data that is not listed here or notice any errors, for 1970’s and earlier Fender amps, please send us an email and we will update the chart.Some things are very obvious such as non-original or reconed speakers, non-original transformers, replaced pots, re-tweed, re-tolex, re-grill, etc.In it's simplest form a vacuum tube can be created to operate as a diode: a device that conducts current only in one direction.A third element called a "control grid" can be added to the design which provides the ability to amplify a signal.

dating fender amps tube chart-77

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It would be more accurate to say that approx 650 of each of these models were produced in ’60. For most purposes, the vacuum tube has been replaced by the much smaller and less expensive transistor, either as a discrete device or in an integrated circuit.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.The simplest vacuum tubes resemble incandescent light bulbs in that they have a filament sealed in a glass envelope which has been evacuated of all air.

When hot, the filament releases electrons into the vacuum: a process called thermionic emission.

Other configurations are also possible including the Pentode, a tube with 5 active elements providing an additional amplification factor.