Can I use one base resistor for several transistors?

Hello,

I am needing to drive four transistors (NPN, NTE123, 2N2222, etc), which are
being used as switches for fairly equivalent loads, from the output of a
4013 flip-flop.

Is there any reason not to just use one base resistor for all four
transistors, or am I missing something really obvious?

Thanks for any insight into this,

Jon


.

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