You can test your PSU, which is advised, before installing the NuTube. What do you mean by "fire it up"?
It is possible to measure voltages before the installation of the Nutube. Has been done (I did it), search function is your friend as obviously some voltage values are then different.
Enables you to make sure all is rght before installing the - quite valuable- Nutube.
Claude
Enables you to make sure all is rght before installing the - quite valuable- Nutube.
Claude
I'm building the B1 from the kit and I just stupidly broke the 50K pot. I have 100K and 20K Alps volume pots on hand. Worth waiting for another 50K pot from Parts Express, or use one of the others on hand? I'll be using the preamp with the ACA.
Either will work. I would use the 20K and not worry about it one bit. I am using 25K.
Lower cut off in bass frequency, probably inaudible since it's already so low.
And they will be physically larger. I am using 100uf Silmic because that's what I had.
And they will be physically larger. I am using 100uf Silmic because that's what I had.
I'd try them. But I haven't heard nice things about organic polymer for signal coupling. To me...100uf Silmics bypassed with a .1UF poly cap sounded best.
Hi Konst,
There is no downside from an electrical POV going from 10uF to 100uF. But also electricaly no benefit at all as the 10uF caps are already well oversized.
Sonics are of course another matter, depending on the quality of the caps you intend to use and your taste. No danger trying...
Have fun
Claude
There is no downside from an electrical POV going from 10uF to 100uF. But also electricaly no benefit at all as the 10uF caps are already well oversized.
Sonics are of course another matter, depending on the quality of the caps you intend to use and your taste. No danger trying...
Have fun
Claude
All B1K pre-orders have now shipped and things have settled down enough that I feel comfortable making the ~100 or so left over units available for sale. Available while stocks last:
Korg Nutube B1 – diyAudio Store
Korg Nutube B1 – diyAudio Store
Hi all, I recently finished my B1 Korg and had no real issues to start, but recently it has been making a rhythmic ticking or clicking sound from the speakers which does not depend on its volume level or input. Its not really audible when playing music except during very quiet passages but I would like to sort this out. Also, it makes a high frequency whine right after it turns on but then it goes away. I'm guessing that is the tube microphony. Any advice on the ticking? Thanks!
I read somewhere in this thread about resistors across the inputs to eliminate switching noise
I tried the search several different ways bur no luck
Could someone refresh my memory or point me in the right direction please ?
I tried the search several different ways bur no luck
Could someone refresh my memory or point me in the right direction please ?
