| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| LM2900N | Quad amplifier | distributor | DIP | 14 | -40°C | 85°C | 323 K |
| LM2900N | QUADRUPLE OPERATIONAL AMPLIFIER | Texas-Instruments | N | 14 | - | - | 134 K |
| LM3900N | Quad Amplifier | distributor | - | - | - | - | 323 K |
| LM3900N | Quad amplifier | distributor | DIP | 14 | 0°C | 70°C | 323 K |
| LM3900N | QUADRUPLE OPERATIONAL AMPLIFIER | Texas-Instruments | N | 14 | - | - | 134 K |
| NE5900N | Call progress decoder | Philips-Semiconductors | DIP | 16 | 0°C | 70°C | 50 K |
| NE5900N | Call progress decoder | Philips-Semiconductors | DIP | 16 | 0°C | 70°C | 50 K |
| ZSR900N8 | 9 V, Fixed positive local voltage regulator | Zetex-Semiconductor | SO | 8 | -55°C | 125°C | 421 K |
| ZSR900N8 | 9 V, Fixed positive local voltage regulator | Zetex-Semiconductor | SO | 8 | -55°C | 125°C | 421 K |
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