QRP CW transceiver for less than $20

 This is idea from LZ1CLK (My friend Dobri Melin). This is  Direct Conversion QRP CW transceiver at any band between 1,8 and 10 MHz for less than $20.

First test video:

I had built new DDS with AD9833, Arduino, aluminum enclosure 100x60x40 mm, band change, step change for CW QRP transceiver Forty-9er 40m. It had finished and worked well.

Transceiver stage is made from Forty-9er eBay kit.
http://www.ebay.com/itm/Forty-9er-Kit-7-023MHz-Short-Wave-Ham-Radio-Telegraph-Transceiver-3W-CW-DIY/172808525224?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Arduino controller for DDS:
http://www.ebay.com/itm/MINI-MICRO-USB-Nano-V3-0-ATmega328P-CH340G-5V-16M-Micro-controller-board-Arduino/291906862007?ssPageName=STRK%3AMEBIDX%3AIT&var=590902858820&_trksid=p2057872.m2749.l2649

AD9833 oscillator:

 http://www.ebay.com/itm/Program-Microprocessors-Sine-Square-Wave-AD9833-DDS-Signal-Generator-Module-MO-/152364443598?hash=item2379a0e7ce%3Ag%3As0kAAOSw241YWlo1

OLED Display from eBay:

ALL SOURCES AND SCHEMATIC:  

https://github.com/LZ1DPN/Forty-9er/

Arduino original example source code is from:
https://github.com/Billwilliams1952/AD9833-Library-Arduino
http://www.vwlowen.co.uk/arduino/AD9833-waveform-generator/AD9833-waveform-generator.htm

73 ES MNI DX'es! LZ7DP