7417 Hex open-collector high-voltage buffers. Maximum output voltage is 15V. +----------+ +-------+ 1A |1 +--+ 14| VCC | A | Y | Y = A 1Y |2 13| 6A |---+---| 2A |3 12| 6Y | 0 | 0 | 2Y |4 7417 11| 5A | 1 | Z | 3A |5 10| 5Y +-------+ 3Y |6 9| 4A GND |7 8| 4Y +----------+ [This information is part of the GIICM]