AMERITRON AL-572 Bedienerhandbuch Seite 2

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Ameritron AL-572 Instruction Manual
ii
Operating Instructions And Guidelines....................................................................................... 16
Front Panel Controls........................................................................................................ 16
"MULTIMETER" Switch ................................................................................... 16
"OFF-ON" Switch ............................................................................................... 16
"STBY-OPR" Switch.......................................................................................... 16
"PLATE" Control................................................................................................ 17
"LOAD" Control ................................................................................................. 17
ALC Metering, Controls, and Adjustments..................................................................... 17
ALC Metering Functions..................................................................................... 17
ALC......................................................................................................... 17
ALC SET................................................................................................. 18
ALC Controls ...................................................................................................... 18
ALC Adjustments................................................................................................ 18
SSB Operation......................................................................................... 18
CW Operation ......................................................................................... 18
Rear-panel "ALC LIMIT" control....................................................................... 19
ALC Limit Adjustment (rear panel).................................................................... 19
Driving Power ................................................................................................................. 20
Tube and Component Life............................................................................................... 20
Tuning ............................................................................................................................. 21
Tuning Procedure................................................................................................ 22
"ALC SET" control ............................................................................................. 24
Additional SSB Notes ..................................................................................................... 25
AM (Amplitude Modulation) Operation......................................................................... 25
Audio Distortion.............................................................................................................. 25
FM (Frequency Modulation), RTTY, and DIGITAL OPERATION .............................. 26
QSK Operation................................................................................................................ 26
Periodic Maintenance.................................................................................................................. 26
Parts List...................................................................................................................................... 28
Power Supply / SWR Board (50-0057-1)....................................................................... 28
Tuned Input Board (50-0057-2) ...................................................................................... 29
AL-572 Tuned Input Chart.............................................................................................. 29
Meter Board (50-0057-3) ................................................................................................ 29
Timer / Overload Board (50-0057-5).............................................................................. 30
AL-572 Main Chassis Parts List ..................................................................................... 31
AL-572 Wiring Diagram............................................................................................................. 32
Power Supply / SWR Board Schematic .......................................................................... 33
Tuned Input Board Schematic......................................................................................... 34
Meter Board Schematic................................................................................................... 35
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