Hello all diy-ers,
I bought one diy tube amp from Ebay and I don’t really trust the chinese schematics they send me and I need a second opinion about it. It uses Chinese 6Z4 in parallel for rectifying AC to DC and 6N2 + 2 x 6P1 for the final stage. I will use Sylvania 6C4 NOS instead of 6Z4, Voskhod 6N2P NOS instead of Chinese 6N2 and Svetlana OTK 6P1P-EV NOS (EL82) instead of Chinese 6P1 - already ordered and on the way!
The resistors and transformers they sent in the package are fine for a first tube build, but the capacitors look fake and low quality (will order some from eBay after the final schematics). Will replace the potentiometer with japanese ALPS dual 100k and a bigger aluminum knob.
How can this schematics be modified for the best sound? I only want SE triode connection for the amp, so I’m not interested in other solutions. I prefer to stick to 6N2 and 6P1 regarding the tubes but I’m open to try other solution using better tubes that work at the same voltage (250v): EL84, EL86. I could really appreciate an answer from you if you have the time!
Output transformers (measured): primary (335-336 ohm), secondary1 (2-2.1 ohm), secondary2 (2.5-2.6 ohm)
Thanks a lot,
matose
I bought one diy tube amp from Ebay and I don’t really trust the chinese schematics they send me and I need a second opinion about it. It uses Chinese 6Z4 in parallel for rectifying AC to DC and 6N2 + 2 x 6P1 for the final stage. I will use Sylvania 6C4 NOS instead of 6Z4, Voskhod 6N2P NOS instead of Chinese 6N2 and Svetlana OTK 6P1P-EV NOS (EL82) instead of Chinese 6P1 - already ordered and on the way!
The resistors and transformers they sent in the package are fine for a first tube build, but the capacitors look fake and low quality (will order some from eBay after the final schematics). Will replace the potentiometer with japanese ALPS dual 100k and a bigger aluminum knob.
How can this schematics be modified for the best sound? I only want SE triode connection for the amp, so I’m not interested in other solutions. I prefer to stick to 6N2 and 6P1 regarding the tubes but I’m open to try other solution using better tubes that work at the same voltage (250v): EL84, EL86. I could really appreciate an answer from you if you have the time!
Output transformers (measured): primary (335-336 ohm), secondary1 (2-2.1 ohm), secondary2 (2.5-2.6 ohm)
Thanks a lot,
matose
Attachments
Last edited: