2N1398 semiconductor manufactured by Sylvania, listed as 2N1398 (circa 1979).

2N1397 semiconductor manufactured by Sylvania, listed as 2N1397 (circa 1979).

2N1396 semiconductor manufactured by Sylvania, listed as 2N1396 (circa 1979).

2N1395 semiconductor manufactured by Sylvania, listed as 2N1395 (circa 1979).

2N1393 semiconductor manufactured by Sylvania, listed as 2N1393 (circa 1979).

2N1392 semiconductor manufactured by Sylvania, listed as 2N1392 (circa 1979).

2N2530 semiconductor manufactured by Sylvania, listed as 2N2530 (circa 1979).

2N1391 semiconductor manufactured by Sylvania, listed as 2N1391 (circa 1979).

2N1256 semiconductor manufactured by Sylvania, listed as 2N1256 (circa 1979).

2N1146A semiconductor manufactured by Sylvania, listed as 2N1146A (circa 1979).

2N1030 semiconductor manufactured by Sylvania, listed as 2N1030 (circa 1979).

2N914A semiconductor manufactured by Sylvania, listed as 2N914A (circa 1979).

2N759A semiconductor manufactured by Sylvania, listed as 2N759A (circa 1979).

2N672 semiconductor manufactured by Sylvania, listed as 2N672 (circa 1979).

2N1388 semiconductor manufactured by Sylvania, listed as 2N1388 (circa 1979).

2N1255 semiconductor manufactured by Sylvania, listed as 2N1255 (circa 1979).

2N1146 semiconductor manufactured by Sylvania, listed as 2N1146 (circa 1979).

2N1029C semiconductor manufactured by Sylvania, listed as 2N1029C (circa 1979).

2N759 semiconductor manufactured by Sylvania, listed as 2N759 (circa 1979).

2N669 semiconductor manufactured by Sylvania, listed as 2N669 (circa 1979).