2N2567 semiconductor manufactured by Allied Electronics, listed as 2N2567 (circa 1964).

2N2566 semiconductor manufactured by Allied Electronics, listed as 2N2566 (circa 1964).

2N2565 semiconductor manufactured by Allied Electronics, listed as 2N2565 (circa 1964).

2N2564 semiconductor manufactured by Allied Electronics, listed as 2N2564 (circa 1964).

2N2563 semiconductor manufactured by Allied Electronics, listed as 2N2563 (circa 1964).

2N2562 semiconductor manufactured by Allied Electronics, listed as 2N2562 (circa 1964).

2N256I semiconductor manufactured by Allied Electronics, listed as 2N256I (circa 1964).

2N2560 semiconductor manufactured by Allied Electronics, listed as 2N2560 (circa 1964).

2N2559 semiconductor manufactured by Allied Electronics, listed as 2N2559 (circa 1964).

2N2558 semiconductor manufactured by Allied Electronics, listed as 2N2558 (circa 1964).

2N2557 semiconductor manufactured by Allied Electronics, listed as 2N2557 (circa 1964).

2N2556 semiconductor manufactured by Allied Electronics, listed as 2N2556 (circa 1964).

2N2555 semiconductor manufactured by Allied Electronics, listed as 2N2555 (circa 1964).

2N2554 semiconductor manufactured by Allied Electronics, listed as 2N2554 (circa 1964).

2N2553 semiconductor manufactured by Allied Electronics, listed as 2N2553 (circa 1964).

2N2552 semiconductor manufactured by Allied Electronics, listed as 2N2552 (circa 1964).

2N662 semiconductor manufactured by Allied Electronics, listed as 2N662 (circa 1964).

2N661 semiconductor manufactured by Allied Electronics, listed as 2N661 (circa 1964).

2N660 semiconductor manufactured by Allied Electronics, listed as 2N660 (circa 1964).

2N659 semiconductor manufactured by Allied Electronics, listed as 2N659 (circa 1964).