2N4117 semiconductor manufactured by Sylvania, listed as 2N4117 (circa 1979).

2N4113 semiconductor manufactured by Sylvania, listed as 2N4113 (circa 1979).

2N4111 semiconductor manufactured by Sylvania, listed as 2N4111 (circa 1979).

2N4101 semiconductor manufactured by Sylvania, listed as 2N4101 (circa 1979).

2N4093 semiconductor manufactured by Sylvania, listed as 2N4093 (circa 1979).

2N4092 semiconductor manufactured by Sylvania, listed as 2N4092 (circa 1979).

2N4091 semiconductor manufactured by Sylvania, listed as 2N4091 (circa 1979).

2N4079 semiconductor manufactured by Sylvania, listed as 2N4079 (circa 1979).

2N4078 semiconductor manufactured by Sylvania, listed as 2N4078 (circa 1979).

2N4077 semiconductor manufactured by Sylvania, listed as 2N4077 (circa 1979).

2N4074 semiconductor manufactured by Sylvania, listed as 2N4074 (circa 1979).

2N4073 semiconductor manufactured by Sylvania, listed as 2N4073 (circa 1979).

2N4072 semiconductor manufactured by Sylvania, listed as 2N4072 (circa 1979).

2N4071 semiconductor manufactured by Sylvania, listed as 2N4071 (circa 1979).

2N4068 semiconductor manufactured by Sylvania, listed as 2N4068 (circa 1979).

2N4065 semiconductor manufactured by Sylvania, listed as 2N4065 (circa 1979).

2N4062 semiconductor manufactured by Sylvania, listed as 2N4062 (circa 1979).

2N4061 semiconductor manufactured by Sylvania, listed as 2N4061 (circa 1979).

2N4060 semiconductor manufactured by Sylvania, listed as 2N4060 (circa 1979).

2N4059 semiconductor manufactured by Sylvania, listed as 2N4059 (circa 1979).