Our single ended and power output transformers use the best grade (M6) low-loss grain oriented silicon iron laminations. This ensures minimal distortion and low insertion loss. We wind our push-pull output transformers on two chamber bobbins which ensures full capacity and resistance balance. All larger types use 14 interleaved primary / secondary sections for the best possible coupling factor and hence excellent high frequency response. The smaller types, where the leakage inductance is lower use 7 sections in a single chamber.

We can make various types of chokes – capacitor input filters, choke input filters, plate (anode) chokes and balanced chokes. Chokes for capacitor input filters are the most frequently used but choke input filter chokes provide somewhat better regulation of the power supply though are much larger.

Our headphone amplifier transformers are provided for both single-ended drive and from an ac-coupled cathode follower. Three or four equal secondary windings are provided on some models to give flexibility in the driving circuit and the headphone impedance. It is always best to use all all the secondary windings to get the best high frequency response.