1N5248B semiconductor manufactured by Allied Electronics, listed as 1N5248B (circa 1976).

1N5247B semiconductor manufactured by Allied Electronics, listed as 1N5247B (circa 1976).

1N5246B semiconductor manufactured by Allied Electronics, listed as 1N5246B (circa 1976).

1N5245B semiconductor manufactured by Allied Electronics, listed as 1N5245B (circa 1976).

1N5244B semiconductor manufactured by Allied Electronics, listed as 1N5244B (circa 1976).

1N5243B semiconductor manufactured by Allied Electronics, listed as 1N5243B (circa 1976).

1N5242B semiconductor manufactured by Allied Electronics, listed as 1N5242B (circa 1976).

1N5241B semiconductor manufactured by Allied Electronics, listed as 1N5241B (circa 1976).

1N5240B semiconductor manufactured by Allied Electronics, listed as 1N5240B (circa 1976).

1N5239B semiconductor manufactured by Allied Electronics, listed as 1N5239B (circa 1976).

1N5238B semiconductor manufactured by Allied Electronics, listed as 1N5238B (circa 1976).

1N5237B semiconductor manufactured by Allied Electronics, listed as 1N5237B (circa 1976).

1N5236B semiconductor manufactured by Allied Electronics, listed as 1N5236B (circa 1976).

1N5235B semiconductor manufactured by Allied Electronics, listed as 1N5235B (circa 1976).

1N5234B semiconductor manufactured by Allied Electronics, listed as 1N5234B (circa 1976).

1N5233B semiconductor manufactured by Allied Electronics, listed as 1N5233B (circa 1976).

1N5232B semiconductor manufactured by Allied Electronics, listed as 1N5232B (circa 1976).

1N5231B semiconductor manufactured by Allied Electronics, listed as 1N5231B (circa 1976).

1N5230B semiconductor manufactured by Allied Electronics, listed as 1N5230B (circa 1976).

1N5229B semiconductor manufactured by Allied Electronics, listed as 1N5229B (circa 1976).