Sunday, December 11, 2022

Tuna Tin S (6), Wired up, ready to test.

 Finally got the synthesizer board wired up and checked.  The 1st photo show the board top side. 

The second photo shows the board underside.  The wiring was done with 28 AWG wirewrap wire, soldered pin to pin. 

The next task will be to design a box for it and get it mounted.  I need to check the power supply draw and maybe add some power supply filtering.   Presently, everything is powered through the D1 Mini USB connection.  The USB supplies 5V and the D1 Mini had a 3.3V regulator that supplies the ESP8266 controller and the other components in the unit: 1) OLED display, 2) Si5351 synthesizer, 3) rotary encoder.

I have a 10W linear amplifier on order from QRP Labs.  It's on it way from Turkey.  When it comes in we'll put it together and then drive it with this synthesizer and try some 40meter QRP activity.



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