Heathkit AA-121

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The Heathkit AA-121 is an electronic kit designed for beginners to learn about circuits and electronics. It is a 3-stage audio amplifier that can deliver 5 watts of audio power into 8 ohms. The kit includes components such as resistors, capacitors, transistors, and a PCB. The assembly process involves soldering the components onto the PCB and connecting them according to the provided instructions. This kit is a great introduction to soldering and circuit design, and it allows users to build a practical device that can be used to amplify audio signals. Once assembled, the AA-121 provides a fun and rewarding listening experience, as users can experiment with different audio inputs and adjust the volume and tone. The soldering skills and circuit understanding gained from this kit can also be applied to more complex electronics projects in the future.

Power Output: 40W into 8Ω (stereo), 80W (mono)
Frequency Response: 20Hz to 20kHz
Distortion: 1.5%
Damping Factor: 16
Speaker Impedance: 4 to 32Ω
Input Sensitivity: 0.95V
Signal to Noise Ratio: 85dB
Dimensions:
Weight: 35.75 lb
Year: 1962
Price: