I drew the circuit diagram in Kicad and laid out the PCB with this circuit linked to the diagram. Kicad runs extensive checks to see that PCB layout and the circuit are in sync. After this, the gerber files for PCB printing were generated from these files. The component position file required for SMD component assembly too were derived from the same set. Hence, they all have to be in sync with each other.
Some visitors to the are landing up on the files that are no longer linked from the home page. These were kept for those who were using an earier version of the bitx pcb that used through hole components. This was entirely hand assembed and prone to mistakes. We had to switch to the smd version to avoid those issues.
If you click on the 'circuit diagram' on , the page shows the circuit diagram.
Here is the circuit diagram from the website :
To see the part placement, see this page?
The first picture is of the parts placement. The 6pin IC shown in the lower left corner is the T3.?
There is no T3, either in the schematic nor in the outline diagram. It is an error in reference designators. If I were to guess, in the original on-a-napkin diagram, A.F. included two full mixers and changed the BFO mixer to the one shown, which is the original BITX configuration. Such things happen all the time. Hi.
