Adam, FAR Circuits made (or maybe still makes) that diode matrix board for the three lowest ranges (~0 to 1.500-MHz) plus the three WARC bands. I made my own version per a QST article in the 1982 July issue, pp 20-22 with PCB overlay on p36. I have one of the FAR boards and made my own PCB from the QST article. If that is the coverage you want for quick access, the board you have is fine.?
73,
Bob Loving K9JU Maryville, TN
On Wednesday, March 22, 2023 at 04:32:01 PM EDT, Adam Farber <adamf@...> wrote:
Yes, I understand that, I was trying to see if anyone knew the maker
and had a paperwork on it. Thanks, Adam
It¡¯s a homebrew Aux7 fill in board to open up 12,17, and 30 if I
remember. I built one and used it until I got my real Aux7 bird.