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  2. List of vacuum tubes - Wikipedia

    en.wikipedia.org/wiki/List_of_vacuum_tubes

    High-power RF power tubes are directly heated; the heater voltage must be much smaller than the signal voltage on the grid and is therefore in the 5...25 V range, drawing up to hundreds of amperes from a suitable heater transformer. In some valve part number series, the voltage class of the heater is given in the part number, and a similar ...

  3. 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.

  4. Ring size - Wikipedia

    en.wikipedia.org/wiki/Ring_size

    An analogic sizing ring stick. Ring sizes can be measured physically by a paper, plastic, or metal ring sizer (as a gauge) or by measuring the inner diameter of a ring that already fits. Ring sticks are tools used to measure the inner size of a ring, and are typically made from plastic, delrin, wood, aluminium, or of multiple materials. Digital ...

  5. Heating element - Wikipedia

    en.wikipedia.org/wiki/Heating_element

    Typically, thick-film heaters are printed on flat substrates, as well as on tubes in different heater patterns. These heaters can attain power densities of as high as 100 W/cm 2 depending on the heat transfer conditions. [13] The thick-film heater patterns are highly customizable based on the sheet resistance of the printed resistor paste.

  6. American Travis Timmerman flown out of Syria after release ...

    www.aol.com/american-travis-timmerman-flown...

    A U.S. defense official told CBS News that Travis Timmerman was flown out of Syria and into Jordan by the U.S. military and handed over to the State Department.

  7. Dolph Lundgren Reveals He’s Cancer-Free After 9-Year Journey ...

    www.aol.com/dolph-lundgren-reveals-cancer-free...

    Dolph Lundgren is officially cancer-free after undergoing his last procedure.. The Swedish actor, 67, who was diagnosed with kidney cancer in 2015, posted a video on Instagram and gave a health ...

  8. Vacuum flange - Wikipedia

    en.wikipedia.org/wiki/Vacuum_flange

    A vacuum flange is a flange at the end of a tube used to connect vacuum chambers, tubing and vacuum pumps to each other. Vacuum flanges are used for scientific and industrial applications to allow various pieces of equipment to interact via physical connections and for vacuum maintenance, monitoring, and manipulation from outside a vacuum's chamber.

  9. Teddy Bridgewater's best NFL season was 2020 with the Carolina Panthers, when he passed for 3,733 yards and 15 touchdowns. (Photo by Jared C. Tilton/Getty Images) (Jared C. Tilton via Getty Images)