New, New TardisBuilders!
Started by DoctorWho8, Jan 17, 2013, 05:24 pm
Quote from: galacticprobe on Jan 30, 2013, 10:09 pmWow! Great photos of those klystrons, and there goes my theory that all of them had flat-topped discs in the middle. (But to be honest, I did like the full round look better.)Since your bank account is weeping (I know the feeling) I won't ask how much these things cost. One thing, though... the pin configuration looks different between the red and grey models. Could you post an "end-on" photo showing how the pins are arranged on each? (As a retired electronics tech I'm always curious about these sort of things.)Dino.
Quote from: galacticprobe on Feb 01, 2013, 08:15 pmSo, enough of tube theory. Either of those look like they'd fit the bill for the Etheric Beam Locator; both red and grey seem to have the same pin configuration, though the red one is already painted the right color.Dino.
Quote from: galacticprobe on Feb 01, 2013, 08:15 pmAnother great set of photos! Thanks! Hazarding a guess, going from my knowledge of tubes/valves: the one large metal pin is most likely the plate, or the + side of the klystron. The other smaller pins are for the heater/cathode (the "-" side; sometimes the heater, a.k.a. filament and the thing inside that glows, can be separate from the cathode in which case there will be three pins for that, 2 for the heater and 1 for the cathode; if they're combined there will only be 2 pins), and the assorted Grids (control grid only if it's a triode, add a screen grid if it's a tetrode, and a suppressor grid if it's a pentode. Without a schematic diagram of this particular klystron, the number of pins would suggest a pentode (the most stable for