Audio transformers and tubes for HIFI

[luiHS]

 
Hi
Could anyone recommend good manufacturers of output transformers and tubes for HIFI audio amplifiers?.

For output transformers I know the manufacturers Hammond, Lundahl, Tamura and Toroidy. I have here Hammond 1627SE for a 2x25w single ended with 6550.

For tubes I have here Ruby Svetlana brand tubes, which I don't know if they are two brands or Ruby the manufacturer and Svetlana the model, this for 6550 tubes.

[Roehrenonkel]

Hi luiHS,
 
Svetlana is the manufacturer (https://www.svetlanajsc.ru/),
Ruby is just the marketing-name.

Lundahl know their job really well. Tamura has a good reputation.
Hammond is not the best but okay.

Good luck

[Circlotron]

Here's a good place to ask if you haven't already tried -> https://www.diyaudio.com/community/forums/tubes-valves.5/