Are you sure they are damaged? They are not in a high-power part of the circuit.
AFAIK, the only precision dual transistors in current production is the one from Latvia.
Matched NPN transistor pair
The specs of each part will be within tolerance of the other. (It was a generic market until chip opamps took over.)
The ALFA parts are available globally at CabinTech:
Cabintech Global LLC
AFAIK, the only precision dual transistors in current production is the one from Latvia.
Matched NPN transistor pair
The specs of each part will be within tolerance of the other. (It was a generic market until chip opamps took over.)
The ALFA parts are available globally at CabinTech:
Cabintech Global LLC