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2. List of Mullard–Philips vacuum tubes - Wikipedia

   en.wikipedia.org/wiki/List_of_Mullard–Philips...

   HF85 – Remote-cutoff wideband RF Pentode, identical to EF85/6BY7 and XF85 except for heater ratings HF93/12BA6 – Remote-cutoff pentode, miniature 7-pin base, EF93/6BA6 with a different heater HF94/12AU6 – Sharp-cutoff RF/IF/AF pentode, miniature 7-pin base, identical to EF94/6AU6 and XF94/3AU6 except for heater ratings

3. Royer oscillator - Wikipedia

   en.wikipedia.org/wiki/Royer_oscillator

   A Royer oscillator is an electronic relaxation oscillator that employs a saturable-core transformer in the main power path. It was invented and patented in April 1954 by Richard L. Bright & George H. Royer, who are listed as co-inventors on the patent. [1]

4. List of World War II torpedoes of Germany - Wikipedia

   en.wikipedia.org/wiki/List_of_World_War_II...

   Standard TI with Fat program-control type I (for security-reasons only used by night). TI Lut I G7a Wet heater 533.4 mm / 7163 mm 120 hm (30 kn) / 75 hm (40 kn) / 50 hm (44 kn) Ka (Pi1), Kc (Pi3) Standard TI with Lut program-control type I. TI Lut II G7a Wet heater 533.4 mm / 7163 mm 120hm (30kn) / 75 hm (40 kn) / 50 hm (44 kn)

5. Thermostat - Wikipedia

   en.wikipedia.org/wiki/Thermostat

   Baseboard heaters will especially benefit from a programmable thermostat which is capable of continuous control (as are at least some Honeywell models), effectively controlling the heater like a lamp dimmer, and gradually increasing and decreasing heating to ensure an extremely constant room temperature (continuous control rather than relying ...

6. Induction heating - Wikipedia

   en.wikipedia.org/wiki/Induction_heating

   Component of Stirling radioisotope generator is heated by induction during testing. Induction heating is the process of heating electrically conductive materials, namely metals or semi-conductors, by electromagnetic induction, through heat transfer passing through an inductor that creates an electromagnetic field within the coil to heat up and possibly melt steel, copper, brass, graphite, gold ...

7. Woman paralyzed by fallen tree finds hope with newly FDA ...

   www.aol.com/news/woman-paralyzed-fallen-tree...

   While the device is currently cleared for improving hand strength, function and sensation, Moritz noted other benefits: "Some people will have modest improvements in their bladder function, heart ...