Transistors for working replica boards

[Neon_WA]

I will be producing some replica boards from late 1971 / early 1972 as a long term project, but it will take me a bit of time to source all the components.

What my question is for a board from that period are only 2Nxxxx tin pot transistors appropriate?
or are plastic PNxxxx/2Nxxxx series transistors still valid for the time period?

or during this period was there a mix of both, depending on what the board manufacturer could get his hands on?

or are there any other things to keep in mind.. like plastic types being more reliable than tin can types?

Any help from people that have a good understanding of electronics from this period would be greatly appreciated

[chip68]

Both are appropriate for the period. There was also a third type, epoxy-topped ceramic, which was relatively common at the time:





Metal cans are hermetic (moisture-proof), so they were more likely to be used in military applications, although you find them in lots of commercial stuff as well.

- CMW

[johnorun]

Check put old 1960's Tektronix equipment (oscilloscopes, etc.)for a good supply of transistors.

[Neon_WA]