15 KW TRANSMISSION LINE MATCHING TRANSFORMER.

Progress is reported on a program to design and build two transmission line matching transformers which operate over the frequency range 2 to 30 mc with a power rating of 15 KW, 100 per cent modulated, and which are capable of transforming an unbalanced primary load 70 ohm resistive impedance with a VSWR no greater than 3 to 1 to a balanced secondary load 600 ohm impedance with a VSWR no greater than 3 to 1. The transformer also should be capable of transforming a 600 ohm balanced primary load to a 70 ohm unbalanced secondary load, where these impedances have the same VSWR variation. Author