Replacement Transistor

Semiconductor Discrete Semiconductor Products
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Is there an alternative for the transistor P/N 2N4274 on the MPX board of a Sencore SG165?

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Welcome to the forum.

My old Sams substitution book says recommends a number of different parts that are all obsolete.

However @APDahlen has a post on here about finding a modern replacement for the NTE123A replacement.

You can also buy most of the substitute parts as new old stock (NOS) because they were so popular last century. Here’s the full list from Sams in case you want to buy an NOS part.

  • NTE123A
  • ECG123A
  • 276-1617 (Radio Shack/Archer)
  • SK3444 (RCA)
  • 121-29000A (Zenith)
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