At Lenco Electronics, your "Special Application" is truly "Their Specialty". Custom transformers of all types. Their versatility includes small printed circuit board transformers, single phase transformers from 10mW to 25KVA and 3 phase transformers from 7VA to 75KVA. Your "Special Application" can be designed with any style of custom termination required. 
Lenco provides low cost samples along with design and manufacturing support from prototype through production.
Audio transformers  Impedance matching - Isolation - Broad frequncy responce - Low insertion loss. 
Switch Mode transformers  Dry type, Air cooled, Laminated or Ferrite.
Inductors  DC Filter Inductors, AC Line Reactors, Current Limiting Reactors, DC Link Inductors, DC Swinging Inductors, Grounding Inductors, Harmonic Filter Reactors, Switch Mode.
Plate transformers
Medical (UL 2601/IEC 601)
Converter Transformers  High conversion efficiency from DC Input to filtered DC out. Toroidal, Laminated, Ferrite, switch Mode etc.
Current Transformers  Toroidal, Laminated Core, Impregnated or Encapsulated.
PCB Transformers
Filament Transformers
Inverter Transformers
Isolation Transformers  Three Phase and Single Phase Transformers. 
Hi-Temperature (Class H per UL 1446)
Low Profile Transformers
Control Transformers  Custom designed to UL, VDE, CSA, etc. specifications.
Constant Voltage Transformers  Regulating transformers built to your specifications for DC power supplies or low distortion AC.
Pot Core  PCB Mount, Frame mount, Encapsulated or Impregnated.
400HZ Transformers
3 Phase Transformers  50-60-400Hz from 7VA to 75KVA.
Autotransformers
Buck Boost Transformers