Bottlehead Crack

Small steps forward. I scraped off as much extra glue as i could and put in some finishing screws to help hold it as the glueing wasnt as tight as i prefer. Here is a pic using some Naptha to bring out the grain and spot rogue glue. The random light spots are glue.

Tomorrow ill be doing a final sanding before i bring it in for spraying.

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That’s actually pretty nice grain on that. They’re usually not as pronounced.

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Thats the naptha wipe down popping it out

Here are some more pics after i sanded away the last of the glue this afternoon.
Here you can see it 100% dry

Here is it after i wiped it down to clean the sawdust and dried a little. The grain always dries last. I hope that means the black will go into there the most and define it more.

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I went to finally download the crack manual and the speedball manual.

Both say ive hit my download limit. Which is funny since i have not downloaded them once.

I had the same thing happen to me. Just email Bottlehead.

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Crap :scream: I wonder if Mainline’s on sale. That may be too much temptation.

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So it does work on the Mainline. Save $194.85.
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Yeah I noticed that :slight_smile: will have to wait till next year though…I bought some pricey cans.

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It’s officially been 1 month since I received my Bottlehead Crack Speedball. The stain and paint both have settled well and darkened slightly…it looks even better now IMO.

After tons of listening time, I can say without a doubt that my favorite tube combos are the Bendix 6080WB with the Matsushita 12AU7, or the Mullard CV2984 with the Brimar CV4003.

Anybody that owns a Sennheiser HD650 or HD600…the Bottlehead Crack should be a mandatory purchase, lol.

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It is really where the name crack comes from! There’s just a certain magic that happens. Like having a piece of chocolate with a glass of port. Or sharing a bottle of liebfraumilch and a quart of spicy Szechuan beef. Or a good stilton with a schmere of fig jam on a water cracker. Magic combinations that you just can’t mess with, regardless of the price.

This post made me hungry.

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Pizza and beer

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Let me know when you get upgraditis please. Along with some favorite tubes. You had a really solid build and good looking amp made​:+1: :ok_hand:

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BTC w/speedball. Where would the unity gain lvl be at for this? Using an Alps Blue Velvet pot.

I had a brainstorm of an idea that I can’t believe I hadn’t thought of before. Will be feeding the BHC SE out from my Freya +. Additional bonus is that I get a remote control volume out of it and don’t have to fiddle with changing switches or cables from the DAC.

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I haven’t seen unity mentioned anywhere - you’d need to ask on the BH forum. I did however used to have the volume on my Crack bypassed when I was using a Saga as a preamp. If you want to do that, I can tell you the resistor values you need to use.

I’d like that just to have as an option. maybe I can even wire it up as something that I can remove and install with spades so I can have the option.

Just looked at my notes and I guess it’s simpler than I remember - if you take the pot out, you need a pair of 100K resistors from input to ground.

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A lot of my guitar work would have pots that had a push pull that may work. Or some, i believe Hamer had them specialy made, had it so when you pushed to 10 there was no wiper and was basically a bypass. Its technically going through the pot still so some say its not a true bypass but it was damn close with still giving you controls.

Thia was all mono guitar work, not sure the options for stereo

I’ll poke around in the BHC forum and see. The do nothing approach is preferable but I do like the idea of removing the pot functionality altogether and just using the preamp.