My speciality. Овчинникова Т.Е - 32 стр.

remembered that increase of control-grid potential is accompanied by increase in
screen current, and this increase in turn causes a f a l l in screen potential owing to
the greater drop in Rs. This f all in turn has the effect of lowering the plate current,
and thus counteracting in part the effect of the original signal on the plate current.
5. It is possible to avoid this difficulty by the use of the condenser С shown in
Figure 12. If this condenser is large enough, it will hold the potential of the screen
practically constant, by passing the fluctuations in screen current directly to the
cathode, instead of permitting them to flow through Rs. To determine the proper size
of C, a satisfactory rule is that its reactance should not be more than one f i f t h the
resistance in shunt with i t , at the lowest frequency to he handled. In computing
this reactance it is necessary to remember that there is an effective A.C.
resistance within the tube between screen and cathode, exactly analogous to the
A.C. plate resistance.

         Notes to the text

screen dropping resistor — гасящее сопротивление экрана
dip — провал
with no net effect on plate current — не оказывая влияния на анодный ток
dislodge v — выбивать (электроны)
the opposing field — противодействующее поле
pronounced variations — явные изменения
dropping resistor - гасящее сопротивление
fluctuations - флуктуации




Figure 11-Screen-Grid Characteristics       Figure 12-Screen Supply for Tetrode

       2.10.6 Translate the word-combinations

a) initial velocity of the secondary electrons; metal plate       structures; required
screen voltage; desired screen potential; screen dropping resistor.
 b) due to the flow of screen current; is clue to the flow of screen current; owing to
the greater drop in Rs.
       2.10.7 Find English word-combinations for the following Russian ones

в такой же степени они вызывают уменьшение в анодном токе; первоначальная
скорость вторичных электронов; при данных условиях электронной
бомбардировки; легко избежать (преодолеть) эту трудность.