Come out and get some soldering practice! This time we’re assembling a short-range FM transmitter kit with a built-in mic and a 1/8″ audio input jack.

This project is recommended for folks who have soldered at least once or twice before. If you’re brand new to soldering, we recommend taking a beginner class first.

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Buy a kit:

• FM Radio Transmitter Kit - $ 5.95
• 3 AA batteries - $ 1.62

(prices include tax)

Instructor donation:$0 / donate later$5$10$15$20$25$30$35

(suggested $15–$30)

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• Transmission Distance: 5-50m
• Transmission Frequency: 88-108MHz
• Audio Input: -15dB (max)
• Operating Voltage: DC 2.7V-3.3V
• Operating Current: 5-15mA