ETA2120A injection transformers provide two different bandwidths, both of which are made of materials superior to most other injection transformers, thereby greatly improving bandwidth, durability and overall performance. The broadband injection transformer is a 1 special type of transformer. It is the perfect choice for inserting signals into various electronic circuits (such as control circuits or switching power supplies). The injection transformer is used with an oscilloscope or vector network analyzer. The stability evaluation of the electronic control circuit is simplified.