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Dating vintage gibson amps

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dating vintage gibson amps-47

The Kalamazoo brand, whose guitars had bolt-on necks, filled that slot.The electrodes are attached to leads which pass through the envelope via an air tight seal.On most tubes, the leads are designed to plug into a tube socket for easy replacement.While you may be willing to pay a high price for a vintage Gibson amp, you should always verify the date of the amp to avoid being ripped off.By verifying the date of manufacture of the Gibson amp you want to buy, you will be able to breath easy that you are getting an authentic amp for the right price.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.

Again, it's important to be sure the parts are original on the music equipment to get a valid date for the amp.

Many tube amplifiers will have a tube chart within the amp itself.

GA-19RVT Falcon: 3-6EU7, 7199, 2-6V6, 5Y3GA-77RET/RETL Vanguard: 3-6EU7, 2-12AU7, 6CG7 (6FQ7), 2-6L6, 0A2 GA-75 Recording: 2-6EU7, 6CG7 (6FQ7), 6C4, 2-6L6 GA-25RVT Hawk (Dated Oct '63 - only one tone-control): 4-6EU7, 12AU7, 2-6V6, 5Y3 GA-25RVT Hawk: 2-6EU7, 3-12AU7 (5814), 2-7591 GA-17RVT Scout: 2-6EU7, 12AX7, 2-6AQ5, 6CA4 (correspond to Epiphone EA-33RVT Galaxie)Titan: 3-6EU7, 2-12AU7, 6FQ7, 4-6L6, 0A2 (12AU7 splitter, 6FQ7 driver) Mercury: 6EU7 splitter, 6FQ7 driver and 2-6L6 output Titan I, III, V and Medalist: 3-6EU7, 2-12AU7, 6FQ7, 4-6L6, 0A2 (correspond to Epiphone EA-500T) Mercury I, II and Medalist (sloping sides): 2-6EU7, 6C4 and 1/2-6EU7 tremolo, 1/2-6EU7 splitter, 6FQ7 driver and 2-6L6 output, 0A2 Courtesy of James Black.

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Gibson Solid Body Serial Numbers Gibson Serial numbers are located on the back of the headstock Years 1953-1961 Use the first number of the 5 or 6 digit serial number.