2N869A semiconductor manufactured by Sylvania, listed as 2N869A (circa 1979).

2N747 semiconductor manufactured by Sylvania, listed as 2N747 (circa 1979).

2N652A semiconductor manufactured by Sylvania, listed as 2N652A (circa 1979).

2N1372 semiconductor manufactured by Sylvania, listed as 2N1372 (circa 1979).

2N1232 semiconductor manufactured by Sylvania, listed as 2N1232 (circa 1979).

2N1136A semiconductor manufactured by Sylvania, listed as 2N1136A (circa 1979).

2N1018 semiconductor manufactured by Sylvania, listed as 2N1018 (circa 1979).

2N869 semiconductor manufactured by Sylvania, listed as 2N869 (circa 1979).

2N746 semiconductor manufactured by Sylvania, listed as 2N746 (circa 1979).

2N652 semiconductor manufactured by Sylvania, listed as 2N652 (circa 1979).

2N1371 semiconductor manufactured by Sylvania, listed as 2N1371 (circa 1979).

2N1231 semiconductor manufactured by Sylvania, listed as 2N1231 (circa 1979).

2N1136 semiconductor manufactured by Sylvania, listed as 2N1136 (circa 1979).

2N1017 semiconductor manufactured by Sylvania, listed as 2N1017 (circa 1979).

2N867 semiconductor manufactured by Sylvania, listed as 2N867 (circa 1979).

2N745 semiconductor manufactured by Sylvania, listed as 2N745 (circa 1979).

2N651A semiconductor manufactured by Sylvania, listed as 2N651A (circa 1979).

2N1370 semiconductor manufactured by Sylvania, listed as 2N1370 (circa 1979).

2N1230 semiconductor manufactured by Sylvania, listed as 2N1230 (circa 1979).

2N1135A semiconductor manufactured by Sylvania, listed as 2N1135A (circa 1979).