HITACHI 6F6GT Audio Power Pentode Tube for Radios
Introducing the robust and reliable HITACHI 6F6GT Audio Power Pentode Tube. A classic vacuum tube in the history of audio electronics, the 6F6GT is widely recognized as the predecessor to the legendary 6V6. It delivers a warm, harmonically rich tone with smooth, natural compression, making it highly sought after by vintage audio enthusiasts, collectors, and restoration professionals.
This vacuum tube is the perfect choice for restoring the authentic performance and classic sound of equipment from the golden age of electronics.
Item Condition: NOS (New Old Stock), includes the original factory box.
Primary Applications of the HITACHI 6F6GT Audio Power Pentode Tube
Vintage Radio Restoration: Originally used as the audio output tube in countless tabletop radios and console receivers manufactured during the 1930s and 1940s.
Vintage Hi-Fi Audio Amplifiers: Ideal for low-power audio amplifiers in both single-ended (SE) and push-pull (PP) configurations.
Early Guitar Amplifiers: Renowned as the output power tube used in some of the earliest guitar amplifiers from manufacturers such as Gibson (e.g., EH-150), Valco, and others, helping define the classic tone of early blues and jazz.
DIY Audio Projects: An excellent choice for builders seeking the authentic sound of a low-power pentode with a unique tonal character that differs from the 6V6.
Detailed Technical Specifications of the HITACHI 6F6GT Audio Power Pentode Tube for Radios
Tube Type: Audio Power Pentode.
Brand / Origin: HITACHI (distributed under the Hitachi brand, likely manufactured in Japan).
Mode: 6F6GT
Base: Octal (8-Pin).
Heater (Filament): 6.3 V @ 0.7 A.
Maximum Plate Voltage: 300 V.
Maximum Plate Dissipation: 11 W.
Typical Output Power (Class A, Single-Ended): 3.5 W.
Typical Output Power (Class AB1, Push-Pull): 11 W.
Compatibility: Direct replacement for 6F6, 6F6G, and 6F6GT tubes.
Founded in 1910, Hitachi, Ltd. is a renowned Japanese multinational conglomerate with a long history of innovation spanning power generation, industrial systems, and consumer electronics. During the vacuum tube era, Hitachi applied its renowned quality control standards and meticulous engineering to produce world-class electronic tubes. Hitachi tubes are recognized for their long service life, tightly controlled specifications, and exceptional build quality, earning a reputation alongside the finest American and European manufacturers. The iconic Hitachi logo printed on the tube is a hallmark of this legacy of engineering excellence.
HITACHI 6F6GT Audio Power Pentode Tube for Radios
