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Visual layout of the front panel controls and indicators.
Examination of the amplifier's internal structure and rear panel connections.
In-depth description of each front panel control and its function.
How the FM/SSB switch affects valve bias and transmission modes.
Explanation of the HI-LO switch for managing input drive power.
Checklist of critical steps before operating the power amplifier.
The first sequence of actions for tuning the amplifier.
Procedure for achieving maximum output power via TUNE and LOAD.
Re-tuning considerations for frequency or drive power changes.
Utilizing stand-by to transmit directly from the transceiver.
Guidelines for integrating and operating with preamplifiers.
Further explanation of the SSB/FM and HI/LO controls.
Analysis of signal quality issues and causes of distortion.
Chart comparing reasonable and maximum output for different models.
Identification and steps for replacing amplifier fuses.
Step-by-step instructions for safely replacing the EIMAC valve.
Critical procedure for heating and preparing a new valve.
A detailed diagram identifying key internal components.
Schematic diagram illustrating the DC power and control circuitry.
Inventory of components used in the DC section of the amplifier.
Schematic diagram specific to the HF system of the D70 model.
Inventory of components used in the RF section of the amplifier.
Details on module connections and its constituent parts.
Diagram showing the layout of components on the D 200 S PCB.
Terms and conditions governing the product warranty.
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General