$4.10

ดักฟังเสียงจากสายโทรศัพท์
[FK306]

• This circuit is a kind of small amplifier circuit. • This single ended expansion gives the clear signal . • Signal will be presented at speaker output . • With power consumption of only 3V. This circuit will be able to provide a clear sound. • The circuit also contains variable resistance for signal adjustment. • Recommended housing : FB17 • PCB dimensions : 1.6” X 1.1”

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Future Kit
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