Analog-Devices 289J Isolation Amplifier 289-J Intronics The Analog-Devices 289J Isolation Amplifier is a high-quality unit manufactured by Intronics in the United States. Manufacturer: Intronics. KEB 02.91.020. CE07 Full Wave Rectifier 0291020CE07. Powertron 100-6 Circuit Board PLC R37R46R7R14 100-600. byJuly 3, 2026