The Improved Pititico CW Transceiver - No AM Broadcast Band Interferences

The Pititico CW transceiver designed by PY2OHH. One of the smallest and simplest transceivers designed around a single 2N2222 transistor. This was somehow an improved version from the second one I built. Unfortunately it still had little issues.

Latest update: I ended up changing the circuit a little for easier adjustment of the TX/RX offset frequency, to remove the AM broadcast band interferences and improve the low pass filter. Check the blog article for details and the latest schematic and PCB board design.

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73, YO6DXE

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David ( DL1DN ) built a modified version for the 10m band, so feel free to do modifications for other bands as well. Check the video bellow:
   • DIY 10m mini transceiver DX reception USA,...  

NOTE:
I’m not an engineer and I’ve never studied electronics. I build equipment for fun as a way to relax, enjoying the amateur radio hobby. All videos and projects are built with the limited knowledge I had at the time I recorded each video. As time goes by, I hope to also improve all the projects. Some may be updated and I publish new videos on the same project. Always check for the latest versions.

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