2N2837 semiconductor manufactured by Allied Electronics, listed as 2N2837 (circa 1964).

2N280I semiconductor manufactured by Allied Electronics, listed as 2N280I (circa 1964).

2N2800 semiconductor manufactured by Allied Electronics, listed as 2N2800 (circa 1964).

2N233I semiconductor manufactured by Allied Electronics, listed as 2N233I (circa 1964).

2N2330 semiconductor manufactured by Allied Electronics, listed as 2N2330 (circa 1964).

2N2540 semiconductor manufactured by Allied Electronics, listed as 2N2540 (circa 1964).

2N2539 semiconductor manufactured by Allied Electronics, listed as 2N2539 (circa 1964).

2N2538 semiconductor manufactured by Allied Electronics, listed as 2N2538 (circa 1964).

2N2537 semiconductor manufactured by Allied Electronics, listed as 2N2537 (circa 1964).

2N250I semiconductor manufactured by Allied Electronics, listed as 2N250I (circa 1964).

2N835 semiconductor manufactured by Allied Electronics, listed as 2N835 (circa 1964).

2N834 semiconductor manufactured by Allied Electronics, listed as 2N834 (circa 1964).

2N708 semiconductor manufactured by Allied Electronics, listed as 2N708 (circa 1964).

2N700A semiconductor manufactured by Allied Electronics, listed as 2N700A (circa 1964).

2N700 semiconductor manufactured by Allied Electronics, listed as 2N700 (circa 1964).

2N975 semiconductor manufactured by Allied Electronics, listed as 2N975 (circa 1964).

2N974 semiconductor manufactured by Allied Electronics, listed as 2N974 (circa 1964).

2N973 semiconductor manufactured by Allied Electronics, listed as 2N973 (circa 1964).

2N972 semiconductor manufactured by Allied Electronics, listed as 2N972 (circa 1964).

2N970 semiconductor manufactured by Allied Electronics, listed as 2N970 (circa 1964).