MAKE/FILMS, the Lancaster city filming company that made the feature-length film "Brave the Dark" about Garden Spot High ...

Western Electric type 203D triode American History Museum Object Details maker Western Electric Description (Brief) A 4-pin plastic base with, corrugated plates, tipped T-shaped envelope. In original ...

I tested a pair of Écoute Headphones to figure out what's going on with them and have a sample for you. 0:00 intro 5:06 Audio ...

Donor’s card reads: “Power triode made by the Sylvania Corporation for use as a modulator, amplifier, or oscillator in radio transmitters. Filament is pure tungsten in three sections for operation ...

The SELECT 12AU7 joins the Ray Tubes SELECT Collection lineup. Vacuum tube company expands line-up with new-production 12AU7 tubes in both ...

In this letter, an improved planar triode with ZnO nanopin field emitters has been proposed. Comparison with a conventional planar triode, a layer of ZnO nanostructures is deposited between the ...

The design and developmentof a 100-watt, grounded-grid triode for operation at full ratings up to 1200 Mc is described. Unusual mechanical design features have been utilized to achieve a tube which ...