AMERITRON AL-80B Specifications

PLEASE READ THIS MANUAL BEFORE ATTEMPTING TO OPERATE EQUIPMENT!! UNPACKING INSTRUCTIONS 1. Carefully lift the amplifier by the bottom cabinet edge o

2 AL-811 LINEAR AMPLIFIER FEATURES The AL-811 is a grounded grid linear amplifier developed by Ameritron using low cost 811A power triodes. It operat

3 GENERAL INFORMATION SAFETY INTERLOCK The interlock switch closes to allow AC line voltage to reach the power transformer as long as the AL-811'

4 METERING FUNCTIONS The AL-811 has two illuminated panel meters. The right meter reads PA grid current up to 200mA. The normal current with a singl

5 INTERCONNECTIONS 1. Connect the RF output of the transmitter to the RF IN connector on the rear of the AL-811 with 50 ohm coax. Use any 50 ohm cab

6 TUNE-UP CW PROCEDURE Follow the instruction in numerical order. If the various meter readings are different than the instructions, c

7 OPERATION OF OTHER MODES SSB: Tune up the exciter and amplifier as described in TUNE UP section and switch the exciter to SSB. Normal ranges of met

8 PERIODIC MAINTENANCE The high voltage present on the plate choke and air variable capacitors attract dust and dirt out of the air stream. It is par