Click here to make tpub.com your Home Page

Page Title: Figure 30. Tuning unit 3, second if. amplifier V405 and if. step attenuator, schematic diagram.
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 



Figure 30. Tuning unit 3, second if. amplifier V405 and if. step attenuator, schematic diagram.
by C445, decreases the plate volt-
plifier output is coupled direct
from the plate to the primary wind-
age.
(5) Resistor R428 and capacitor C438
ing of if. transformer T404, which
provide decoupling in the first if,
is resonated to 42-mc by parallel-
amplifier plate circuit. Resistor
c o n n e c t e d capacitor C444. Resis-
R 4 3 3 and capacitor C443 provide
tor R431 functions as a loading re-
d e c o u p l i n g in the second if. am-
sistor to lower the Q of the tuned
p l i f i e r plate circuit.
c i r c u i t . The secondary winding of
(6) The first if. amplifier rf output is
T404 has a 50-ohm output im-
pedance to maintain a low standing
coupled to second if. amplifier
wave ratio to output jack J408, the
V405 by C439. The second if. am-
66


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business