Stevens & Billington Limited Audio Transformers

Our Ultra miniature transformers are extremely useful when space is a problem they are. The Mu-metal screened devices measure just 16mm in diameter and 11mm in height. The carefully selected core material will allow a source level of -9dB @ 40Hz. Larger signals can be coped with, with the use of a suitable input pad. The table below gives the specification for a sample of the transformers covering the turns ration from 1:1 to 1:4. The figures below were achieved using a 75 ohm source and a 10K ohm load. The transformers work well with a microphone impedance of up to 600 ohms.Please click here for drawing.