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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: Instrument weight / slam: how to get it? posted by banpuku on March 2, 2014 at 16:35:39:
This is my current amp, and I just love the piano sound. For some reason the 4P1L does piano really well. The circuit itself is ridiculously simple and 4P1Ls are cheap. The two transformers - interstage and OPT - need to be good, though, and in particular the filament supplies for filament bias need to be uber-clean. Filaments of the 4P1L are wired in parallel for 2v. No economising or cutting corners - it's all audible in filament bias. The benefit of this design is no coupling caps and no cathode bypass caps and just 2 stages. Very clean and transparent sound.
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Follow Ups
- My "best piano sound" schematic - andy evans 03/3/1402:42:35 03/3/14 (1)
- My "best piano sound" schematic higher current - andy evans 03:37:52 03/3/14 (0)
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