This telephone interception circuit features a simple 3V amplifier that provides a clear signal through the supplied earphone bud. By adopting a high impedance input design that FK306 presents minimal loading on the telephone line.

Technical Specification

• Power Supply : 3VDC @ 20mA max.
• Output Level Adjustment :Trimmer Potentiometer.
• PCB Dimensions : 1.58" x 1.10" x 0.6" (40.13mm x 27.94mm x 15mm)

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