6.
REFERENCES
137
.
phasing condenser C may be omitted With pentodes. Here r1 may
be 50 to 1000 ohms, 72 of the Order of 100 ohms and rs much
greater, perhaps 20,000 ohms. It will be found that less care is re—
quired by the student when triode_s are used in the circuits above
than With tetrodes or pentodes.
Measure the voltages amplication constant of 3. tube operated
under normal conditions, determine
plot values of either the
plate impedance or mutual conductance for various plate voltages.
REFERENCES
'
1. See L. Page and N. I. Adams. Principles of
D. Van
Nostrand Co. (1931).
-
-
.
.
2. U. S. Patents, No. 841387 (1907); No. 879532 (1908)3. ]. M. Miller“, Proc, I. R. E., 6, 141 (1918).
,
General Reference B, Chapter VII_
,
4. General Reference C, pages
34—44.
General Reference A, pages 177—191.
5. L. R. Hafstad, Phys. Rev., 44, 201 (1933).
‘
‘
_
“
6.— See K. T. Compton and 1. Langmuir, Rev. Mod. Phys., 2, 171 (1930).
7. Zworykin, Morton and Malter, Pr0c, I. R. E., 24, 351 (1936).
,
L. A. Kubetsky, Proc. I. R. E., 25,421 (1937).
‘
_
.
8. P. T. F arnsworth, Electronics, 7,242 (1934).
_
_
'
9. Sèe V. K Zworykin, Jr. Frank. Inst., 215, 535 (1933),
_
‘
10. General Reference
et seq.
.
,.
.
,
'
11. W. EStorF, Zeit.f. EleCtroteCk, 37;‘«63 (1916):
=
-'
12. C. ]. Davisson and C. ]. Calbick, Phys. Rev., 38, 585 (1931).
.'
.
,
L;
'
-'
13- W« W Hansen nd:
‘P—Ÿ‘Kirkpatïièlâ dIGBk1YRVs ÎPSë->7»…24 {19.36%
144 ;. GMaloffandWEpstelnPmc IïfR1386 ,_<1934>—
_
D WEpt PIRE24IO9S
; «:
à
'
î
,
A—ELChaffeeTheoryfTef'mwchacuumTum
McGraW
,
"
HIHBOΠ.
HlBœkCo
:
‘
JSprmgr<1934>