2N257 semiconductor manufactured by Lafayette Radio Electronics, listed as 2N257 (circa 1969).

2N242 semiconductor manufactured by Lafayette Radio Electronics, listed as 2N242 (circa 1969).

2N351 semiconductor manufactured by Lafayette Radio Electronics, listed as 2N351 (circa 1969).

2N235 semiconductor manufactured by Lafayette Radio Electronics, listed as 2N235 (circa 1969).

2N176 semiconductor manufactured by Lafayette Radio Electronics, listed as 2N176 (circa 1969).

7408 semiconductor manufactured by Lafayette Radio Electronics, listed as 7408 (circa 1969).

74963 semiconductor manufactured by Lafayette Radio Electronics, listed as 74963 (circa 1969).

74955 semiconductor manufactured by Lafayette Radio Electronics, listed as 74955 (circa 1969).

74948 semiconductor manufactured by Lafayette Radio Electronics, listed as 74948 (circa 1969).

74864 semiconductor manufactured by Lafayette Radio Electronics, listed as 74864 (circa 1969).

74807 semiconductor manufactured by Lafayette Radio Electronics, listed as 74807 (circa 1969).

74798 semiconductor manufactured by Lafayette Radio Electronics, listed as 74798 (circa 1969).

74773 semiconductor manufactured by Lafayette Radio Electronics, listed as 74773 (circa 1969).

74765 semiconductor manufactured by Lafayette Radio Electronics, listed as 74765 (circa 1969).

74732 semiconductor manufactured by Lafayette Radio Electronics, listed as 74732 (circa 1969).

74724 semiconductor manufactured by Lafayette Radio Electronics, listed as 74724 (circa 1969).

74716 semiconductor manufactured by Lafayette Radio Electronics, listed as 74716 (circa 1969).

74666 semiconductor manufactured by Lafayette Radio Electronics, listed as 74666 (circa 1969).

74641 semiconductor manufactured by Lafayette Radio Electronics, listed as 74641 (circa 1969).

74567 semiconductor manufactured by Lafayette Radio Electronics, listed as 74567 (circa 1969).