Skraćena veza: https://pedja.supurovic.net/veza/9510
I’ve got second hand Vectronics PM-30 SWR/Power Meter and found out very little information about it on Internet. I’ve prepared Manual and Schematics from paper documentation I got with it.
If someone needs it, here is download: Vectronics PM 30 pwr swr meter manual and schematics