| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LH0004 |  128Kb/6P | LH0004 High Voltage Operational Amplifier |
 National Semiconductor ... | LH0004CH |  128Kb/6P | LH0004 High Voltage Operational Amplifier |
| LH0004H |  128Kb/6P | LH0004 High Voltage Operational Amplifier |
| LH0004H-MIL |  128Kb/6P | LH0004 High Voltage Operational Amplifier |
 National Semiconductor ... | LH0003 |  106Kb/4P | Wide Bandwidth Operational Amplifier |
 National Semiconductor ... | LH0004CH |  128Kb/6P | LH0004 High Voltage Operational Amplifier |
| LH0004H |  128Kb/6P | LH0004 High Voltage Operational Amplifier |
| LH0004H-MIL |  128Kb/6P | LH0004 High Voltage Operational Amplifier |
| LH0020 |  66Kb/3P | HIGH GAIN OPERATIONAL AMPLIFIER |