I happened across this page - it shows a 12AU7 tube being used in an output position, without any kind of input tube stage. Naturally, I am sure output is measured in milliwatts, but it looks very cool.
12AU7ƒAƒ“ƒv
I find the final schematic fascinating, but I do not understand how it works. I am not used to seeing CRD diodes, so I'm not sure what's going on here.
Also, the design calls for a pair of Sansui ST-24 input transformers per channel. I see they are quite popular (and apparently inexpensive) in Japan for hobby tube amplifiers, but I can't seem to locate anyplace in the US to purchase them, or a suitable replacement for them. Any thoughts on that?
Thanks!
12AU7ƒAƒ“ƒv
I find the final schematic fascinating, but I do not understand how it works. I am not used to seeing CRD diodes, so I'm not sure what's going on here.

Also, the design calls for a pair of Sansui ST-24 input transformers per channel. I see they are quite popular (and apparently inexpensive) in Japan for hobby tube amplifiers, but I can't seem to locate anyplace in the US to purchase them, or a suitable replacement for them. Any thoughts on that?
Thanks!