Hi
I may have solved the WiFi noise.
After having seen several schematics for LM380 I discovered that all of them have a 100nF cap in series with a 2.7ohm? from pin 8 to ground. This was not on the sBitx schematics.
Dismantling the sBitx again and study the pcb. No cap and resistor.
I didn't have 2.7ohm but 4.7ohm parallel with 10ohm gives 3.2ohm. I gave it a try.
And result was no strange noise with WiFi connected and no noise when disconnected from my net.
73 de oz9ny, niels
