AMERITRON AL-572 Bedienerhandbuch

Ameritron AL-572 Instruction Manual i Table of Contents Introduction ...

Ameritron AL-572 Instruction Manual 8 CIRCUIT DESCRIPTIONS ALC The AL-572 is one of the few amplifiers using a "true" automatic level contr

Ameritron AL-572 Instruction Manual 9 voltage of D103, Q103 will move towards cut-off and the collector voltage will increase. Q103 functions as a c

Ameritron AL-572 Instruction Manual 10 The left-hand meter scale indicates the grid current (Ig). The small pickets on this "Ig" scale app

Ameritron AL-572 Instruction Manual 11 ALC The multimeter measures the output voltage of the ALC detector when in the ALC position. The full scale A

Ameritron AL-572 Instruction Manual 12 WARNING: NEVER drive this amplifier with more than 100 watts of short term average envelope power. NEVER all

Ameritron AL-572 Instruction Manual 13 TECHNICAL ASSISTANCE Technical assistance is available during normal central standard time business hours on w

Ameritron AL-572 Instruction Manual 14 INSTALLATION GUIDELINES AND SUGGESTIONS LOCATION OF THE AMPLIFIER Do not install the amplifier in excessively

Ameritron AL-572 Instruction Manual 15 For 120 volt operation, the wiring between the fuse box and the amplifier ac outlet must be number 14 gauge (o

Ameritron AL-572 Instruction Manual 16 TRANSFORMER CONNECTIONS The power transformer can be adjusted for various power line voltages by changing a gr

Ameritron AL-572 Instruction Manual 17 INTERCONNECTIONS 1. Connect the exciter's RF output to the "RF IN" connector on the rear of the

Ameritron AL-572 Instruction Manual ii Operating Instructions And Guidelines...

Ameritron AL-572 Instruction Manual 18 This switch will also reset the grid protection circuit if an optional grid overload protection circuit is ins

Ameritron AL-572 Instruction Manual 19 ALC SET In this position the multimeter measures the approximate grid current that will produce ALC activity.

Ameritron AL-572 Instruction Manual 20 should be adjusted until the ALC voltage meter slightly flickers (ALC position of the "MULTIMETER" s

Ameritron AL-572 Instruction Manual 21 DRIVING POWER This amplifier is designed to operate at full ratings when it is driven by an exciter that has a

Ameritron AL-572 Instruction Manual 22 TUNING WARNING: The transformer must be wired correctly for your line voltage. This amplifier is normally sh

Ameritron AL-572 Instruction Manual 23 Tuning Procedure Proper tuning will produce excellent output power, a clean signal, and good tube life. If the

Ameritron AL-572 Instruction Manual 24 6. With the exciter's drive level still on zero, observe the 1000 mA Ip scale on the left hand meter. It

Ameritron AL-572 Instruction Manual 25 *11b. Increase the exciter drive power (if the ALC is not connected) until 180 mA of grid current is indicated

Ameritron AL-572 Instruction Manual 26 ADDITIONAL SSB NOTES The peak power output developed on SSB is limited by the amplifier loading, RF drive, and

Ameritron AL-572 Instruction Manual 27 FM (FREQUENCY MODULATION), RTTY, AND DIGITAL OPERATION The efficiency of this amplifier will approach 62% in t

Ameritron AL-572 Instruction Manual 1 Ameritron AL-572 1300 watt PEP Linear Amplifier Instruction Manual INTRODUCTION The Ameritron AL-572 is a 1000

Ameritron AL-572 Instruction Manual 28 For your personal safety please observe the following precautions: 1. NEVER defeat the interlock. 2. NEVER re

Ameritron AL-572 Instruction Manual 29 PARTS LIST POWER SUPPLY / SWR BOARD (50-0057-1) Designator Description Ameritron P/N D101,102,114,115 1N34A

Ameritron AL-572 Instruction Manual 30 TUNED INPUT BOARD (50-0057-2) Designator Description Ameritron P/N C201 (transmitter side) See input chart

Ameritron AL-572 Instruction Manual 31 TIMER / OVERLOAD BOARD (50-0057-5) Designator Description Ameritron P/N C501-506 .01 uF 50 V disc 200-0416 C5

Ameritron AL-572 Instruction Manual 32 AL-572 MAIN CHASSIS PARTS LIST Designation Description Ameritron P/N B1 Fan 410-3138 C1-3 .001 uF 7.5 kV

Ameritron AL-572 Instruction Manual 2 UNPACKING INSTRUCTIONS Remove the AL-572B tubes from their shipping cartons. Carefully inspect each tube for v

Ameritron AL-572 Instruction Manual 3

Ameritron AL-572 Instruction Manual 4 FEATURES + The AL-572 uses rugged inexpensive 572B tubes. + The 572B requires only a few seconds of warm-up t

Ameritron AL-572 Instruction Manual 5 AL-572 TECHNICAL SPECIFICATIONS INPUT Circuit type:...

Ameritron AL-572 Instruction Manual 6 Normal line current at rated CW output:... 16 A at 120 Vac Normal line current at 1300 watt PE

Ameritron AL-572 Instruction Manual 7 GENERAL INFORMATION SAFETY INTERLOCK An interlock switch is closed while the amplifier's top cover is in p