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6V6 – Metal jacketed envelope. The metal envelope of 6V6 is connected to pin 1 of the base, and was normally used as a ground. Pin 1 of the other members of the 6V6 family of tubes are usually not internally connected, although some may have the gray RF shield connected. 6V6GT – smaller "Glass Tube" T-9 envelope.
The 5E1 [5] and 5F1 [6] 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, [7] by the code stamped on the speaker [8] or by its serial number. [9]
Fender Harvard. 1959 Fender Harvard 5F10. The Fender Harvard is a vacuum tube (valve) guitar amplifier made by Fender from 1955 to 1963. The Harvard appeared only in a tweed covered "narrow-panel" cabinet, but in two very different circuit designs, namely 5F10 (1955–61) and 6G10 (1962–63). [1]
Interchange instability. The interchange instability, also known as the Kruskal–Schwarzchild instability or flute instability, is a type of plasma instability seen in magnetic fusion energy that is driven by the gradients in the magnetic pressure in areas where the confining magnetic field is curved. [1]
6L6. 6L6 is the designator for a beam power tube introduced by Radio Corporation of America in April 1936 and marketed for application as a power amplifier for audio frequencies. [ 1][ 2] The 6L6 is a beam tetrode that utilizes formation of a low potential space charge region between the anode and screen grid to return anode secondary emission ...
Service. Audio. Socket connections. B9A (Noval) The EL84 is a vacuum tube of the power pentode type. It is used in the power-output-stages of audio-amplifiers, most commonly now in guitar amplifiers, but originally in radios. The EL84 is smaller and more sensitive than the octal 6V6 that was widely used around the world until the 1960s.
The Fender Deluxe amp of the 1950s was a medium-powered unit designed to let guitarists "hold their own" in a small group. As blues, western swing, Western, and rockabilly bands began getting louder, the overdriven tone of a cranked-up Deluxe found its way onto many live and recorded performances. The earliest version of the Deluxe was the 5A3 ...
By Nate Raymond. (Reuters) -A federal appeals court on Tuesday ruled a Minnesota law requiring a person to be at least 21 years old before obtaining a permit to carry a handgun in public for self ...