Building an Arduino Shield

No, an Arduino shield is not something that will protect you from Arduinos.  Resistance IS futile! In the world of microcontrollers, "shields" are, in essence, PC boards with headers that allow you to stack them atop the main microcontroller board.  So instead of the digital rat's nest of wires that you see in my proto-board version of the DDS signal generator, we'll have the AD9850 board mounted above the Arduino on its shield.  But take heart, my fellow luddites:  I have left a lot of space on the board for the construction of a DISCRETE COMPONENT, ANALOG, NON-DIGITAL amplifier.  I'd like to get the output from the 9850 up to around 7 dbm.

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