Your first radio transmitter can now talk
Getting a simple 1 transistor CW transmitter to talk. Modification adds an LM386 audio amplifier as a modulator to transmit AM voice. Contents 0:00 Introduction 0:16 How to voice modulate a CW transmitter 2:23 Need an audio amplifier to modulate 2:57 Audio amp diagram 4:59 Electret mic 7:26 Modulator and connecting to the transmitter 10:42 Wiring 11:48 Testing 14:47 Alternative crystal frequencies 15:13 What if it doesn't work? 15:49 Connecting a mobile phone with a voice loop app 16:29 Range test outside 16:57 On a web SDR 18:53 On air reports 19:00 Conclusion If you haven't done so please watch Part 1 first: • Your first radio transmitter you built you... PS: If you liked this video please consider supporting Amateur Radio VK3YE by: Subscribing on YouTube Checking my books page at https://books.vk3ye.com Shopping on Amazon via: https://amzn.to/3iiDQXv , or Shopping on eBay via: https://ebay.us/i9DuWP (then if you buy something I'll get a small commission at no cost to you)
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