I cleaned the pcb with a pcb cleaner "Kontakt LR " from Kontakt-Chemie. The english name is "Kontakt PCC" just sprau it over and brush lightly with a fine brush. Then use hot water to remove the cleaner and use a air-duster to blow the water away. Let it dry for about a day.
The R8 is acutally a 10k Resistor (SMDcode 1002 =10k) this is used because the poti is a 5k, so you can set the voltage more exactly. So 10k is the lowest setting and 15k the highest. The voltage divider has to output 1.25V feedback to the MAX1771. So the first resistor is a 1.5Meg, then the poti and 10k in series. The feedback output is between 1.5Meg and Poti. I will post a schematic later this week -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/619959a3-109c-43ba-bebc-1b1e322e59f9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
