In its simplest form, a suppressor grid, typically of coarse structure, is interposed between the screen grid and the anode ( plate ) of a tetrode, turning it into a pentode.
22.
The solution was to add another grid between the screen grid and the main anode, called the suppressor grid ( since it suppressed secondary emission current toward the screen grid ).
23.
The screen grid serves to increase the stage gain while also providing shielding which increases the stability of the circuit by reducing the effective capacitance between the first grid and the anode.
24.
When viewing the full-screen grid, spaces themselves may be re-arranged by dragging and dropping ( requires clicking on the blue " desktop " area, instead of on a window within it ).
25.
Pentodes, therefore, can have higher current outputs and a wider output voltage swing; the anode / plate can even be at a lower voltage than the screen grid yet still amplify well.
26.
The pentode, as introduced by Tellegen, has an additional electrode, or third grid, called the suppressor grid, located between the screen grid and the anode, which solves the problem of secondary emission.
27.
The movie ends with a split-screen grid showing flashback shots of Brian's four identities, while Reggie says she hopes that they have lots of boys, so they can name them all after him.
28.
The development of the tetrode vacuum tube containing a screen grid led to a multi-element tube in which the mixer and oscillator functions could be combined, first used in the so-called autodyne mixer.
29.
In normal operation the screen grid is connected to a positive DC voltage slightly less than the plate voltage, and bypassed to the cathode with a capacitor, so it was at AC ground.
30.
The beam tetrode can be operated as a triode ( by connecting its screen grid to its anode ), and in this mode functions more efficiently than a pentode operated in the same manner.
