| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM1894 |  270Kb/10P | Dynamic Noise Reduction System DNR |
 National Semiconductor ... | LM1894M |  270Kb/10P | Dynamic Noise Reduction System DNR |
 National Semiconductor ... | LM1894N |  270Kb/10P | Dynamic Noise Reduction System DNR |
 National Semiconductor ... | LM1893 |  576Kb/24P | LM1893/LM2893 Carrier-Current Transceiver |
| LM1893N |  576Kb/24P | LM1893/LM2893 Carrier-Current Transceiver |
| LM1894M |  270Kb/10P | Dynamic Noise Reduction System DNR |
 National Semiconductor ... | LM1894N |  270Kb/10P | Dynamic Noise Reduction System DNR |
| LM1895 |  205Kb/6P | AUDIO POWE RAMPLIFIER |
| LM1895N |  205Kb/6P | AUDIO POWE RAMPLIFIER |
| LM1896 |  266Kb/10P | LM1896/LM2896 Dual Audio Power Amplifier |
 National Semiconductor ... | LM1896N |  266Kb/10P | LM1896/LM2896 Dual Audio Power Amplifier |