License

Public Domain

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FM-TRANSMITTER

9 months ago 344
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

Small size FM transmitter, that allow you broadcast sound at 87.5-108.0 MHz.

TESTED

Transistors:

  • 2N3904 - 2

Resistors:

  • 100k Ω - 1
  • 100Ω - 1
  • 1M Ω - 1
  • 1k Ω - 1
  • 10k Ω - 3

Inductors:

  • 0.1µH inductor (Air coil)

Capacitors:

  • 0.1µF - 2
  • 30 pf trimmer - 1
  • 4.7 pF - 1
  • 10pF - 1

Other:

  • Antenna
  • 12V power source
  • PCB

Documents

Schematic

PCB

BOM

ID Name Designator Footprint Quantity
1 10k R1,R2,R7 AXIAL-0.4 3
2 1k R3 AXIAL-0.4 1
3 100 R4 AXIAL-0.4 1
4 100k R5 AXIAL-0.4 1
5 1M R6 AXIAL-0.4 1
6 0.1uH L1 W12_H1.5 1
7 POWER SPI2 РАЗЪЕМ_CNT-KF301-2P 1
8 0.1uF C1,C3 CERAMIC CAPACITOR TH SMALL 2
9 10pF C4 CERAMIC CAPACITOR TH SMALL 1
10 4.7pF C5 CERAMIC CAPACITOR TH SMALL 1
11 Antena A1 ANTENNA HOLE 1
12 30pF C2 VARIABLE_CAPACITOR 1
13 2N3904 Q1,Q2 TO-92(TO-92-3) 2
14 SWITCH S1 HDR1X3 1
15 Stereo Jack Jack Socket J1 SOCKET AUDIO JACK 3.5MM PJ30070 TH 5-PIN 1

Attachments

None

Members

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