gug42
500+ Head-Fier
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- Jan 29, 2008
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Hello,
MrCurwen, When I will get more time, I will realy be interested ! My first amp is what it is : a first amp, a starting point, a learning machine
Now I'm confident in myself to be able to build an amp
Sorry I don't understant what you want to say / explain
I'm totally agree. I have a good stock of 6SL7 and only two paris of 6SN7 .... I start with 6SN7 for timing reason .... Shipping delay for some resistor ....
Yep I know. But it's to have exactly 6,3V whatever my local voltage could be
I know that DHT tubes needs a careful filament supply. Planning one : filtered and regulated.
I really want to heard thoses golden age tubes. I'm open to other stuff. 47 could be an option, in triode strapped modes. Indeed that's not the "good" or "best" approche, but ... well .... it's a pleasure, and, at the end pleasure is the objectif (if you see my point ?)
Did you have some triode strapped curves for the 47 ?
Ok I will please to talk about this with you
Thank you again
MrCurwen, When I will get more time, I will realy be interested ! My first amp is what it is : a first amp, a starting point, a learning machine
Now I'm confident in myself to be able to build an amp
Series feed OT amps pretty much always have an anti-loudness frequency response, meaning at least some depression in bass and high treble. It's the "sweet mids tube sound" thing.
Add grid current and RC cathode bias and you've got a pinch more loudness filter.
Sorry I don't understant what you want to say / explain
Tube types aren't the important thing (up to a point, they need to have nice curves). Simple changes in circuitry bring back so much more in sound gains than any tube type change.
I'm totally agree. I have a good stock of 6SL7 and only two paris of 6SN7 .... I start with 6SN7 for timing reason .... Shipping delay for some resistor ....
Unless you've messed up with the wiring, this will do nothing for the sound quality. No need for it at all. Badly filtered DC WILL sound worse than clean AC, because it has spikes in the voltage (triangle wave or similar).
Yep I know. But it's to have exactly 6,3V whatever my local voltage could be
DH tubes will sound horrible unless filament supply is actively filtered. This is a real hassle once you go up in current. If you want to taste the DH magick, I suggest you use 4P1L.
It's the most linear and best output tube there is anyway. Why go for second rate tubes like 2A3? 45 is crazy expensive; if you want Golden Age Americana, go for 47 or 1619 or similar.
I know that DHT tubes needs a careful filament supply. Planning one : filtered and regulated.
I really want to heard thoses golden age tubes. I'm open to other stuff. 47 could be an option, in triode strapped modes. Indeed that's not the "good" or "best" approche, but ... well .... it's a pleasure, and, at the end pleasure is the objectif (if you see my point ?)
Did you have some triode strapped curves for the 47 ?
Crazy crazy expense. A simple 2 FET reg will solve these issues AND sound better.
Ok I will please to talk about this with you
Thank you again
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