I saw on the internet some amplifiers that use 833 A, C tubes.
Two examples would be Wavac SH-833 and Amplifon SET140.
If they are mass-produced, even if limited, it is assumed that there is a manufacturer of such tubes.
Does anyone know what final tubes the two companies use? Who are the tube manufacturers?
833 tubes are currently produced in China
1PCS 833A Electron Tube FU 33 833C 833A Triode Tube Vacuum Tubes Made In China|Button Cell Batteries| - AliExpress
But I guess amps manufacturers prefer to use NOS tubes, when it is possible. If you are interested in NOS, we could discuss in private.
Last edited: