NTE substitutes for System 80 transistors
Cross-references: MPS-A13 takes an NTE46; MPS-U45 an NTE272 or CEN-U45; 2N5875 or 2N5879 an NTE180; 2N3055 an NTE130; 2N6043 an NTE261, TIP122 or TIP102; the 2N6057, 2N6059 and PMD10K40 all an NTE247; 2N5550 or 2N5551 an NTE194; 2N4400 or 2N4401 an NTE123AP; 2N4403 or MPS-A70 an NTE159; TIP31C an NTE291; and the UDN6118 display driver chip an NTE2021. NTE and ECG use the same numbers. A 2N5550 can also be swapped for a 2N5551, 2N2222 or 2N1711.
Systems
Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part One, Clay Harrell (pinrepair.com)