Dating rca tube
Because of this, the 6V6 soon proved itself to be suitable for use in consumer-market musical instrument amplifiers, particularly combo-style guitar amps such as the Gibson GA-40, and the Fender Amplifiers; Champ, Princeton, and Deluxe, some of which drive their 6V6s well in excess of the datasheet specified maximum rating. 6V6GTX = HY6V6GTX – a GT "Bantam" selected for high gain, with a ceramic base, 15W plate dissipation rating, produced for a limited period around 1941 by Hytron. 5992 – Premium, ruggedized 6V6GT with heater current raised to 600m A. 6V6GT(A)(B)-STR – Modern production valve, STR signifying "Special Tube (or Test) Request" Claiming to be heavy duty, suitable for high plate voltage. They used a Joint Army-Navy Nomenclature System (AN System. 6P6P - Chinese version of the 6V6GT made by Shuguang, but now obsolete, different from Shuguang's current production 6V6GT. 6AY5 – East German production 6V6GT VT227 = 7184 – Cited equivalent, made by Ken-Rad, inadequate documentation, no RMA registration.
This ongoing demand encourages Chinese, Slovakian and Russian tube factories not only to keep the 6V6 in production to this day, but to further develop the supply. 6V6GX – Glass "Shouldered Tube" ST envelope, Ceramic Base. The metal envelope of 6V6 is connected to pin 1 of the base, and was normally used as a ground. 5871 – Ruggedized 6V6GT for operation under severe vibrations found in aircraft and similar applications. Military specification 6V6 tubes and their equivalents American military services contracted tubes from many sources through the U. JAN) Most of these tubes bare the JAN marking as well as a VT number. WT-210-00-82 – Cited equivalent, inadequate documentation, no RMA registration.
By 1940, the 6V6G production was largely superseded by this smaller "GT" T-9 glass envelope.
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Founded in 1919 as a subsidiary of General Electric, The Radio Corporation of America was responsible for many key innovations in radio technology.
The lower-powered 6V6 was better suited for average home use, and became common in the audio output stages of "farmhouse" table-top radios, where power pentodes such as the 6F6 had previously been used.
The 6V6 required less heater power and produced less distortion than the 6F6, while yielding higher output in both single-ended and push-pull configurations.