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General| Type | Communications Receiver |
|---|---|
| Modes | AM, CW, SSB |
| IF Frequencies | 455 kHz |
| Sensitivity | 1 µV (10 dB S/N) |
| Weight | 9 kg |
Lists key performance data like frequency range, modes, and sensitivity.
Details selectivity, stability, audio output, power, and dimensions.
Explains the function and components of the RF amplifier.
Lists all vacuum tubes and diodes used in the receiver.
Details the heterodyne mixer, crystal oscillator, and VFO circuits.
Describes the filter assembly and IF amplifier stages.
Covers demodulator, BFO, audio amplifier, and output stages.
Guidance on connecting speakers, headphones, and antennas.
Function of the preselector tuning control.
How the band switch operates and band coverage.
Operation of the function switch (Power, Standby, Receive, Calibrate).
Explanation of the mode selection for different reception types.
How to adjust RF gain for receiver sensitivity.
How to adjust audio gain for volume control.
Adjusting sidetone and phasing for reception enhancement.
Use of ANL for noise limiting and Clarifier for fine-tuning.
Recommended control settings for AM reception.
Recommended control settings for CW reception.
Recommended control settings for SSB reception.
Connecting and configuring for transceive operation with FL-100-B.
Chassis removal, test equipment, and tube replacement guidelines.
Step-by-step alignment for BFO, IF, VFO, and filters.
Diagnosing common issues like no audio or S-meter problems.
Tables for resistance and voltage checks during troubleshooting.
Formula for calculating crystal frequencies for extra bands.
Instructions for connecting coils and capacitors for extra bands.
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