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Details frequency range, modes, power requirements, dimensions, and weight for the main unit.
Provides background on the transceiver's design and features.
Explains frequency organization and PLL circuit operation using figures and tables.
Provides a visual guide to the internal components of the transceiver.
Shows the PC board layouts for various units like VFO, Rectifier, Final, and Switch boards.
Lists all components, including resistors, capacitors, semiconductors, tubes, and unit-specific parts.
Provides a visual guide to the step-by-step process of disassembling the transceiver.
Details the procedures, test equipment, and specifications for various alignment and calibration steps.
Shows the physical locations of adjustment points on the top and bottom views of the unit.
Details frequency range, output voltage, stability, and power requirements for the VFO-230.
Explains the VFO-230's circuit design, including PLL loops and microprocessor control.
Presents a visual overview of the VFO-230's internal functional blocks.
Lists components for the VFO-230, including semiconductors, ICs, and unit-specific parts.
Details procedures for reference oscillator, PLL, RIT, CW shift, and encoder adjustments.
Shows component layout and instructions for VFO-230 AC voltage conversion.
Details frequency range, power, impedance, and dimensions of the antenna coupler.
Details power meter adjustment steps and necessary connections for the AT-230.
Provides instructions for calibrating the reference power output of the AT-230.
Details semiconductor type, input power, and power consumption for the DS-2 unit.
Lists components for the DS-2 unit, including fuses, semiconductors, and accessories.
Details speaker characteristics like impedance, frequency response, and dimensions.
Lists components for the SP-230 speaker, including cases, knobs, and screws.
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