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General| Type | AM/FM Radio Kit |
|---|---|
| Tuning | Analog |
| FM Frequency Range | 88 - 108 MHz |
| Power Source | 9V Battery |
| AM Frequency Range | 530 kHz - 1600 kHz |
| Speaker | 8 Ohms |
| Antenna | Telescopic antenna for FM, Internal Ferrite Bar antenna for AM |
Techniques for proper soldering and identifying good connections.
Essential safety precautions for working with tools and soldering.
Visual guide to identifying correct and incorrect solder connections.
Method for testing transistors and diodes using an ohmmeter.
Building and testing the IC audio amplifier stage.
Measuring the initial power consumption of the circuit.
Verifying voltage levels at key test points in the circuit.
Measuring the AC voltage gain of the audio amplifier stage.
Determining the frequency range over which the amplifier operates effectively.
Assessing signal distortion at maximum output levels.
Calculating the maximum undistorted power output.
Determining the power conversion efficiency of the amplifier.
Building and testing the five-transistor audio amplifier stage.
Checking power consumption and verifying bias voltages for the transistor amplifier.
Measuring bias voltages for specific transistors in the amplifier.
Calculating the DC gain of the transistor audio amplifier.
Measuring AC gain for the transistor audio amplifier.
Determining the AC bandwidth of the transistor amplifier.
Calculating maximum undistorted power output for the transistor amplifier.
Determining power conversion efficiency for the transistor amplifier.
Understanding, assembling, and testing the AM detector and AGC circuits.
Measuring AGC bias and testing transformer T8.
Testing AM detector and AGC performance with external equipment.
Performing a system check after AM detector and AGC tests.
Building and testing the second AM Intermediate Frequency amplifier.
Measuring the bias voltage at transistor Q9.
Building and testing the first AM Intermediate Frequency amplifier.
Measuring AC gain for the first AM IF amplifier.
Assembling the AM mixer, oscillator, and antenna stages.
Assembling the PC board stand.
Measuring the bias voltage at transistor Q7.
Testing the functionality of the AM oscillator circuit.
Aligning AM circuits using basic tools and an earphone.
Tuning IF transformers and adjusting oscillator for optimal AM reception.
Tuning IF amplifiers using test equipment for AM signals.
Adjusting the oscillator for proper frequency tracking.
Aligning the RF stage to track the oscillator.
Understanding, testing, and aligning the FM ratio detector circuit.
Measuring DC voltage in the FM section.
Measuring transistor current in the FM section.
Measuring AC gain of the FM ratio detector circuit.
Aligning the FM ratio detector without test equipment.
Aligning the FM ratio detector using RF generator and oscilloscope.
Aligning the FM ratio detector using a sweep generator.
Building and testing the second FM IF amplifier stage.
Measuring the bias voltage at transistor Q5 in the FM section.
Measuring AC gain of the second FM IF amplifier.
Determining the bandwidth of the second FM IF amplifier.
Building and testing the first FM IF amplifier stage.
Measuring AC gain of the first FM IF amplifier.
Determining the bandwidth of the first FM IF amplifier.
Assembling and testing the FM RF amplifier, mixer, oscillator, and AFC stages.
Measuring the bias voltage at transistor Q3.
Measuring AC gain of the FM mixer stage.
Testing the bandwidth of the FM oscillator circuit.
Assembling the FM oscillator components.
Measuring the bias voltage at transistor Q2.
Assembling the Automatic Frequency Control circuit.
Measuring the bias voltage at transistor Q1.
Aligning FM circuits without test equipment using a magic wand.
Tuning FM IF coils and adjusting oscillator for optimal reception.
Tuning FM IF amplifiers using test equipment.
Adjusting the oscillator for proper frequency tracking.
Aligning the RF stage to track the oscillator.
Important notice regarding the kit box for future use.
