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Heathkit SP-2 - User Manual

Heathkit SP-2
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Heathkit SP-2 Specifications

General IconGeneral
TypeStereo Preamplifier
Power OutputN/A (Preamplifier)
Tube Quantity4
Tube Type12AX7
Frequency Response20Hz to 20kHz
Total Harmonic DistortionLess than 0.1%
Input Impedance47k ohms
InputsPhono, Tuner, Aux
OutputsTape Output
Power Requirements117V AC, 60Hz

Summary

Heathkit Stereo Preamplifier SP-2 Schematic

Input and Control Sections

Details various input signal paths including auxiliary and phono, along with tone and volume controls.

Preamplifier Tube Stages

Illustrates the vacuum tube circuitry (12AU7, 12AX7) used for signal amplification and equalization.

Power Supply Circuitry

Depicts the power supply components and voltage distribution for the preamplifier operation.

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