Shirley, which upgrade kit are you referring to? DE upgrade #1 was a power supply fix for the 5V to the Raspberry Pi an upgrade #2 was for a solid state T/R switch. See my photo of the board. I don¡¯t see any toroids of any sort or any color. I was referring to the factory soldered yellow toroids on the main board of the DE that are part of the low pass filter section. Where are your toroids supposed to go?
Jack, N6LN
John Terrell, N6LN