Crack;Bottlehead OTL
May 19, 2023 at 7:51 PM Post #12,016 of 12,347
Can we see it now with the tubes plugged in once you got it wired up?
Will it have enough power?
I haven't seen a Crack with four sockets.
You could use a Dremel to cut those long screws down.

I'm going to connect the other sockets this week and I'm going to install the film capacitors as well. As soon as I finish I will post the pictures here.

Detail: I don't intend to use the four sockets at the same time, but a 6sn7 alone or two 6j5, but not all at the same time.
 
May 19, 2023 at 7:53 PM Post #12,017 of 12,347
May 20, 2023 at 5:08 PM Post #12,018 of 12,347
I think I'm done. I'm just having a little problem.

When I use only the 6sn7, when I close the volume completely, it starts to make a noise/wheezing, but only when I close the volume completely.

Quando estou usando dois 6j5 não acontece nenhum problema.

WhatsApp Image 2023-05-20 at 18.04.20 (1).jpeg

WhatsApp Image 2023-05-20 at 18.04.20 (2).jpeg

WhatsApp Image 2023-05-20 at 18.04.20.jpeg

WhatsApp Image 2023-05-20 at 18.04.21.jpeg
 
May 22, 2023 at 3:13 PM Post #12,019 of 12,347
I think I'm done. I'm just having a little problem.

When I use only the 6sn7, when I close the volume completely, it starts to make a noise/wheezing, but only when I close the volume completely.

Tube noise?
 
May 23, 2023 at 9:15 PM Post #12,020 of 12,347

I found the problem.

It was excess solder that ran into the socket of the pins.

I cleaned everything, redid the soldering and the problem is solved.
 
May 26, 2023 at 5:46 PM Post #12,022 of 12,347
I recently got a bottlehead crack from US to India and found that it's got 110 volts and we have 220 volts ,

Can any internal changes made to convert 110 to 220 or just use a step up transformer
Bottlehead uses a universal transformer. So yes, you can rewire the transformer to be 220V. I don't think bottlehead allows their build guides to be shared, so you can probably contact them and ask how to rewire the transformer for 220V.
 
May 28, 2023 at 3:33 PM Post #12,028 of 12,347
My favorite combo so far was the HD650+Crack. Is there a way to get the same sound with SS or at least with a Chinese tube amp?
SS no, with the possible exception of some of Nelson Pass's amps. OTL tube yes. Hybrid or tube with transformer - maybe.
 
May 28, 2023 at 3:35 PM Post #12,029 of 12,347
The DarkVoice 336SE is made in China and also an OTL tube amp like the BHC. I don't know how similar they sound but I've seen comparisons out there. SS amps that sound like the BHC? Not likely.
Stock DarkVoice is not as good as the BHC or BHCs. However the XDUOO T-26 is widely available built from China for $319 and its a fine OTL amp for the HD-600 and HD-800 and 800S.
 
May 28, 2023 at 7:16 PM Post #12,030 of 12,347
Stock DarkVoice is not as good as the BHC or BHCs. However the XDUOO T-26 is widely available built from China for $319 and its a fine OTL amp for the HD-600 and HD-800 and 800S.
The Xduoo T26 is basically just a DarkVoice with a PCB instead of copper wiring
 

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