We are offering basic electronics trainer. basic electronic trainer 2mm bs-2 jackterminal for various test point. Power led indication. Built-in two dc regulated power supplies of +12 v dc & + 5 v dc. On board two npn transistors two pnp transistor different potentionmeters, gang capacitor and medium wave coil, different type of resistances capacitors. On board two push on switches for active low pulses in bi-stable multi- vibrator, ac input: 230 v ac, 50 hz, ±10% . Mounted on a " sophiosticated cabinet". Document: details operational manual. Accessories : patch cords.