2N3345 semiconductor manufactured by Sylvania, listed as 2N3345 (circa 1979).

2N3344 semiconductor manufactured by Sylvania, listed as 2N3344 (circa 1979).

2N3343 semiconductor manufactured by Sylvania, listed as 2N3343 (circa 1979).

2N3342 semiconductor manufactured by Sylvania, listed as 2N3342 (circa 1979).

2N3341 semiconductor manufactured by Sylvania, listed as 2N3341 (circa 1979).

2N3340 semiconductor manufactured by Sylvania, listed as 2N3340 (circa 1979).

2N3339 semiconductor manufactured by Sylvania, listed as 2N3339 (circa 1979).

2N3338 semiconductor manufactured by Sylvania, listed as 2N3338 (circa 1979).

2N3337 semiconductor manufactured by Sylvania, listed as 2N3337 (circa 1979).

2N3330 semiconductor manufactured by Sylvania, listed as 2N3330 (circa 1979).

2N3326 semiconductor manufactured by Sylvania, listed as 2N3326 (circa 1979).

2N3325 semiconductor manufactured by Sylvania, listed as 2N3325 (circa 1979).

2N3324 semiconductor manufactured by Sylvania, listed as 2N3324 (circa 1979).

2N3323 semiconductor manufactured by Sylvania, listed as 2N3323 (circa 1979).

2N3322 semiconductor manufactured by Sylvania, listed as 2N3322 (circa 1979).

2N3321 semiconductor manufactured by Sylvania, listed as 2N3321 (circa 1979).

2N3320 semiconductor manufactured by Sylvania, listed as 2N3320 (circa 1979).

2N3319 semiconductor manufactured by Sylvania, listed as 2N3319 (circa 1979).

2N3318 semiconductor manufactured by Sylvania, listed as 2N3318 (circa 1979).

2N3317 semiconductor manufactured by Sylvania, listed as 2N3317 (circa 1979).