Ham Radio - Build your own QRPp CW transmitter
54:08
Ham Radio - Building the Cricket 40 QRPp CW transceiver kit.
23:46
Building the new QMX+ 12 Band QRP Transceiver by @QRPLabs
13:10
Your First 1929 Style Transmitter!
21:03
How To Make A Crystal Radio - No Batteries (Updated Version Available)
24:06
Top 10 QRP Rigs of the 1970's - 80"s
22:43
REVIEW: CR Kits CPK-1 Pixie2023 7 MHz QRP transceiver
13:06
faça uma rádio AM simples!!! Qualquer pessoa com um hobby de eletrônica pode fazer rádio
39:28