5—2.
THE SHOT EFFECT
_
101
changes are very small in comparison to the total current since
they are due to a change of only a few particles in billions.
Since the variations in the plate current are too small and take
place too frequently to be observed directly, an indirect method of
proof must be used. The changes of current are used to set up
oscillations in an inductance-capacitance circuit, LC of gure 5—3.
'
A momentary increase in the charge in the condenser occurs ,
as the plate current undergoes a slight increase. This additional
quantity of electricity discharges through the inductance in the
usual oscillatory manner. The oscillations thus produced occur at
a frequency equal to 1/27r \/ZΑ, the natural or resonant frequency
of this circuit.
In other words, the irregular changes of plate current set up oscillations in LC by “shock excitation.”
,
.
w
»
.
>:
'
'Amplifier
.
a
Lä pas… @
_
B
.
;'
'
F1G.5—3. _The shot effect.
_
The result of the continued shock excitation of the LC circuit
is” that an “average” voltageisdeveloped across the condense‘r C ‘
which
—_Îheamount of this Voltage
depends »on_the' typeof
to take place from the
‘
Schottky123 assumed that
particles all _'
carried…the‘fsame
that the probability of escape _
of ‘janÿ oneoftheparuclesmm
. wouldnôt_ be inuenced
byothercharges From staiëtî‘ë‘àl considèrâ‘ëîonsxhè then derived
«
condenser_
THE SHOT EFFECT
_
101
changes are very small in comparison to the total current since
they are due to a change of only a few particles in billions.
Since the variations in the plate current are too small and take
place too frequently to be observed directly, an indirect method of
proof must be used. The changes of current are used to set up
oscillations in an inductance-capacitance circuit, LC of gure 5—3.
'
A momentary increase in the charge in the condenser occurs ,
as the plate current undergoes a slight increase. This additional
quantity of electricity discharges through the inductance in the
usual oscillatory manner. The oscillations thus produced occur at
a frequency equal to 1/27r \/ZΑ, the natural or resonant frequency
of this circuit.
In other words, the irregular changes of plate current set up oscillations in LC by “shock excitation.”
,
.
w
»
.
>:
'
'Amplifier
.
a
Lä pas… @
_
B
.
;'
'
F1G.5—3. _The shot effect.
_
The result of the continued shock excitation of the LC circuit
is” that an “average” voltageisdeveloped across the condense‘r C ‘
which
—_Îheamount of this Voltage
depends »on_the' typeof
to take place from the
‘
Schottky123 assumed that
particles all _'
carried…the‘fsame
that the probability of escape _
of ‘janÿ oneoftheparuclesmm
. wouldnôt_ be inuenced
byothercharges From staiëtî‘ë‘àl considèrâ‘ëîonsxhè then derived
«
condenser_