low voltage transformers power transformer toroidal transformer LOW VOLTAGE TRANSFORMERS Dyco Electronics is a manufacturer of up to 12 KVA, surface & PCB mount, ferrite, laminated & pot cores, power audio, planar, flyback, MIL-PRF-27, high and low voltage transformers, corona free, vacuum impregnated, toroidal, common mode chokes. Design & prototype svc. J-STD-001 certified soldering instructor on-site.