AMERITRON AL-1500 Instruction Manual

AMERITRON AL-1500FULL POWERLINEAR AMPLIFIERINSTRUCTION MANUALThe Ameritron AL-1500 is a 1500 watt output linear amplifier thatoperates from 160 throug

CW PROCEDUREFollow these instructions in numerical order. If the various meterreadings are different than indicated, check the connections fromthe exc

ALC (Automatic Level Control)ALC will prevent over-power operation.The primary use of the ALC is to reduce the input drive powerto a safe level for th

PARTS LIST

UNPACKING INSTRUCTIONS1. Carefully remove the amplifier, transformer, and tube from their shipping cartons.Inspect each item for visible damage. If an

FEATURES1. High performance tube: the AL-1500 uses a single rugged3CX1500A7/8877 tube.2. High power gain: the 3CX1500A7/8877 features highpower gain.

GENERAL INFORMATIONSAFETY INTERLOCKWhile the Amplifier's top cover is in place, the interlock switchcloses to allow AC line voltage to reach the

METERING FUNCTIONSThe AL-1500 has two illuminated meters. The Grid Current meterprovides a continuous indication of the 3CX1500/8877 gridcurrent. This

TRANSFORMER INSTALLATION Cont.Fig. 3For 240V Operation (factory wired):The four primary leads have colored plastic insulating bootsover the quick disc

Caution: This page is only valid for transformers that contain these exact color codes for the primary winding. Earlyproduction units did not contain

INTERCONNECTIONS1. Connect the RF output of the exciter to the RF IN connectoron the rear of the AL-1500 with 50 ohm coax. Use any goodquality 50 ohm

LOCATIONPOWER CONNECTIONS-Do not operate the Amplifier in excessively warm locationsor near heating vents or radiators. Be sure air can circulatefreel