Changed rectifier tube to Mullard RG3-250A and Output is EL38 Mullard Brown Base OO getter. Because these tube is NOS. Sounds is clearer than COSSOR EL38. I also reduced first cap to 2uF (RG3-250A specified) VCC is reduced to 320V. This also not finished yet.
Cool Project!
All Tube are Okay! I guess old production, may not NOS.
About Sound, it seem to be your output transformer that U using has far away from standard!
Cheers,
kung32369 2 months ago