2N5061 semiconductor manufactured by Sylvania, listed as 2N5061 (circa 1979).

2N5060 semiconductor manufactured by Sylvania, listed as 2N5060 (circa 1979).

2N5059 semiconductor manufactured by Sylvania, listed as 2N5059 (circa 1979).

2N5058 semiconductor manufactured by Sylvania, listed as 2N5058 (circa 1979).

2N5054 semiconductor manufactured by Sylvania, listed as 2N5054 (circa 1979).

2N5053 semiconductor manufactured by Sylvania, listed as 2N5053 (circa 1979).

2N5052 semiconductor manufactured by Sylvania, listed as 2N5052 (circa 1979).

2N5051 semiconductor manufactured by Sylvania, listed as 2N5051 (circa 1979).

2N5050 semiconductor manufactured by Sylvania, listed as 2N5050 (circa 1979).

2N5047 semiconductor manufactured by Sylvania, listed as 2N5047 (circa 1979).

2N5046 semiconductor manufactured by Sylvania, listed as 2N5046 (circa 1979).

2N5045 semiconductor manufactured by Sylvania, listed as 2N5045 (circa 1979).

2N5042 semiconductor manufactured by Sylvania, listed as 2N5042 (circa 1979).

2N5041 semiconductor manufactured by Sylvania, listed as 2N5041 (circa 1979).

2N5040 semiconductor manufactured by Sylvania, listed as 2N5040 (circa 1979).

2N5039 semiconductor manufactured by Sylvania, listed as 2N5039 (circa 1979).

2N5038 semiconductor manufactured by Sylvania, listed as 2N5038 (circa 1979).

2N5037 semiconductor manufactured by Sylvania, listed as 2N5037 (circa 1979).

2N5036 semiconductor manufactured by Sylvania, listed as 2N5036 (circa 1979).

2N5035 semiconductor manufactured by Sylvania, listed as 2N5035 (circa 1979).