This is one piece of toroidal transformer. The transformer is a perfect choice for preamplifiers, headphone amplifiers or voltage gain stage of power amplifier. The transformer accepts 110VAC to 220VAC by different wiring on the primary windings.
Input voltage : 110Vac or 220Vac
Output voltage :
1. two 15V AC 200mA windings (yellow/yellow & black/black)
2. two 9V AC 500mA , windings (red/red & grey/grey)
Primary connections : 110V + 110V (red black + red black)