transmitting

I have a vintage receiver wired to a pair of floor standers and a sub for the mains. I want to add a set of powered remote speakers and make them wireless (WiFi not Bluetooth). I’d like to play mains and remotes at the same time. So I basically need a transmitting device attached to the...

I was helping out an old friends estate for the family, he was a big radio, test eq. and ham radio collector. His tube collection was almost all radio tubes, but in the bottom of box were these. First 845,s I have found in about 20 years Nice to see these and they have good filaments I cannot...