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2. Sylvania Electric Products - Wikipedia

   en.wikipedia.org/wiki/Sylvania_Electric_Products

   The Hygrade Sylvania Corporation was formed when NILCO, Sylvania and Hygrade Lamp Company merged into one company in 1931. In 1939, Hygrade Sylvania started preliminary research on fluorescent technology, and later that year, demonstrated the first linear, or tubular, fluorescent lamp. It was featured at the 1939 New York World's Fair. [1]

3. 6L6 - Wikipedia

   en.wikipedia.org/wiki/6L6

   Heater voltage: 6.3: Heater current: 900 mA: Anode; Max dissipation Watts: 30: Max voltage: 500 Specification listed is for type 6L6-GC: Socket connections; The 6L6 Pinout, metal versions had the shell connected to pin 1. Pin 1 – n.c Pin 2 – Heater Pin 3 – Anode (Plate) Pin 4 – Grid 2 (Screen) Pin 5 – Grid 1 (control) Pin 6 – n.c ...

4. Sylvania (brand) - Wikipedia

   en.wikipedia.org/wiki/Sylvania_(brand)

   Sylvania is a Canadian multinational electronics corporation headquartered in Toronto, Ontario, Canada. The company is owned in North America by Osram Sylvania and, outside of North America, Feilo Sylvania. The two license the brand to other companies for various products. The Sylvania brand was originally owned by Sylvania Electric Products. [1]

5. 6SN7 - Wikipedia

   en.wikipedia.org/wiki/6SN7

   The 1954 6CG7 [4] and 6FQ7 are electrically equivalent to the 6SN7, with nine-pin miniature ("Noval") base (RCA, 1951), also made as an 8.4V 450mA series string heater type as the 8CG7. In contrast to what some sources claim, the ECC40 with Rimlock base and introduced by Philips in 1948 cannot be considered a successor to the 6SN7 [ 5 ] as the ...

6. Sylvania - Wikipedia

   en.wikipedia.org/wiki/Sylvania

   Sylvania Electric Products, a former major American diversified electrical and electronics manufacturer; Sylvania (brand), its Canadian lighting products division which continues to license to both Havells Sylvania and Osram Sylvania; Osram Sylvania, an American lighting manufacturer owned by Osram AG of Germany

7. 6V6 - Wikipedia

   en.wikipedia.org/wiki/6V6

   These tubes have very similar characteristics to the 6V6, but differ either in the heater rating, or use a different socket and pin-out 5V6GT - Same as the 6V6GT, but with different heater ratings - 4.7V, 0.6A, controlled 11 sec. warm-up time.