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= к х v х [- (211'[ С) -- с ( 1Т [) + - (1 11' С) - ..i.. (1411"' l) "']
IЩ Ы~ 'IТ OSC· 'IТ о • ()~ • 7-rr щ.
wheгe К is а gain fa cto Г, as deteгmined Ьу the tгansfoгmeгs' tuгns гatios, diode
losses, and loading.
Figures 15-31 and 15-32 аге t:he front pages of the patents filedl Ьу С. R. Keith and
F. А. Cowan that weгe pubIished Ьу the U.S. Patent Office. Note that patents сап
Ье accessed through www.google.comjpatents. Note that Figure 15-30 isderived
from Figure 15-32.
April 26, 1932. С. R. KEITH l 855,576
t
FREQUENCY ТRАNSLЛТING SYSTEM
Filed April 9, 1929
Fia.l
7' t1
1-
Z8 /4
/6
'о
"29
