I want to constuct a transmission line transformer with coaxial ,but it seem that the coaxial of 25ohm and 10ohm is hard to buy. Can anyone tell me where to buy?thanks!!!
There are a lot of companies that make 25 ohms or 10 ohms coaxial cables. Especially semi-rigid cables. If you were looking for a PA matching application semi-rigid would be fine. http://www.haverhillcable.com/