DRAKE L-4B - Table of Contents

IlllE IF CIIIEIII _
PAGE
STANDARD WARRANTY (inside front cover)- 1
GENERAL SPECIFlCATIONS--·-------------_ 1
FRONT PANEL CONTROLS-----------------__ 1
DESCRIPTION------------------------ 2
INStALLATION INSTRUCTIONS-------------- 3
A. Unpacking-------------------------- 3
B. Tube & Chimney--------------------- 3
c. Location--------------------------- 4
D. Power Requ~rements----------------- 4
E. Jumper Connection Diagrams--~------ 4
F. Low Pass Filter-------------------- 5
G. Antenna Requirements--------------- 5
H. Ground Requirements---------------- 5
I. Exciter Requirements--------------- 6
J. Transmitting AGC------------------- 6
K. VOX Relay-------------------------- 6
L. Initial Connection Diagrams-------- 7
M. Viewing Angle Options-------------- 8
TUNING PROCEDURE-----------~----------- 9
A. CW & RTTY-------------------------- 9
B. 88B & AM---------------------------10
OPERATION------------------------------ll
A. CW & RTTY--------------------------ll
B. 8SB-------------.·-----------------ll
c. AM---------------------------------ll
D. SWR Calculation--------------------12
E. Accessory Frequencies--------------l3
THEORY OF OPERATION--------------------13
SERVICE DA~--------------~------------14
A. Amplifier--------------------------t4
B. Power Supply-----------------------16
c. Ordering Service Parts-------------17
D~ Returning L.. 4Bto Pactory-----------17
ALIGNMBNT------------------------------18
A. Input Cotl Adjuatment--------------18
B. Meter Adjuatment-------------------18
c. Knob Pointer Alignment-------------19
D. Wattmeter Calibration--------------19
SCHEMATICS for L-4B Amplifier and Power Supply (lalt 2 fold out pagel) .