The Triode power transformers are superior to the originals as it is rated for more current. The original Sunn power transformers from Dynaco were not rated high enough and failed. The Schumacher power transformers were a bit better in that respect.
The original Sunn output transformers, especially the Dynaco ones, were excellent, and many people grabbed Sunns when they were really cheap and used the output transformers for their hi-fi projects, so finding original Sunn output transformers is a long shot. The Triode transformers are excellent quality.