1N249B semiconductor manufactured by Allied Electronics, listed as 1N249B (circa 1964).

1N249A semiconductor manufactured by Allied Electronics, listed as 1N249A (circa 1964).

1N249 semiconductor manufactured by Allied Electronics, listed as 1N249 (circa 1964).

1N248C semiconductor manufactured by Allied Electronics, listed as 1N248C (circa 1964).

1N248A semiconductor manufactured by Allied Electronics, listed as 1N248A (circa 1964).

1N207 semiconductor manufactured by Allied Electronics, listed as 1N207 (circa 1964).

1N198B semiconductor manufactured by Allied Electronics, listed as 1N198B (circa 1964).

1N198 semiconductor manufactured by Allied Electronics, listed as 1N198 (circa 1964).

1N192 semiconductor manufactured by Allied Electronics, listed as 1N192 (circa 1964).

1N191 semiconductor manufactured by Allied Electronics, listed as 1N191 (circa 1964).

1N158 semiconductor manufactured by Allied Electronics, listed as 1N158 (circa 1964).

1N153 semiconductor manufactured by Allied Electronics, listed as 1N153 (circa 1964).

1N152 semiconductor manufactured by Allied Electronics, listed as 1N152 (circa 1964).

1N151 semiconductor manufactured by Allied Electronics, listed as 1N151 (circa 1964).

1N160 semiconductor manufactured by Allied Electronics, listed as 1N160 (circa 1964).

1N150R semiconductor manufactured by Allied Electronics, listed as 1N150R (circa 1964).

1N150 semiconductor manufactured by Allied Electronics, listed as 1N150 (circa 1964).

1N147A semiconductor manufactured by Allied Electronics, listed as 1N147A (circa 1964).

1N128A semiconductor manufactured by Allied Electronics, listed as 1N128A (circa 1964).

1N128 semiconductor manufactured by Allied Electronics, listed as 1N128 (circa 1964).