DPDT Transistor-Swapper
In this case both emitters are going to ground so they don't need to be swapped out, just the Bases and Collectors.
View attachment 120912
If you've got a circuit that the emitter doesn't go to ground you can still swap out two transistors: add a pole to the switch,
ie make it a 3PDT ON-ON and add the emitters to the switcherooniki.
Plenty of examples online of switching out two transistors, this is mine.
BTW, that's not gibberish in the diagram, that's top-secret code.
(see if you can decipher what it says!)