40 meter XCVR size of an business card with 1 watt output, 7.000 to 7.150 MHz coverage

qrp-ultralite2-600

A business card size homebrew 40 meter XCVR project from Ray Ring:

I tweaked my previous XCVR design to use push button tuning and made the board layout extremely compact. I improved the side tone injection to be absolutely  perfect – not too loud, full break in and no clicks. I went ahead and integrated my switch cap 8 pole CW filter. The schematic is fairly simple with 65 parts or so.. and the whole design fits into a 3D printed enclosure the size of an business card.

Project info at Circuit Salad homepage.

Check out the video after the break. 

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