Darlington Pair Amplifier Trainer is an SSI India product in the AMPLIFIER AND OSCILLATORS category. Key specifications include SKU: PAO-E144. TECHNICAL SPECIFICATIONS Power Supplies. DC Power Supply IC Regulated +30V DC, 150mA. Operated on Mains power 230V, 50Hz +10% Digital Meter. Capacitors SALIENT FEATURES. Connections are brought out through 4mm