[Feynman]

Hi! I just got my bottlehead crack kit this friday and yesterday evening I started to put the things in place, then I noticed that one of the rca-jacks looks really strange, I tried taking a rca-cable to test if it fit and it sure did, do you think it is something I should worry about?

 
Oh! And also one more thing. I get confused with the safety ground, I currently have two screws left, one philips 3/8" and one normal (star) 3/8" and one #8 lockwasher and one small lockwasher. In the manual it says that I should use  #8 screw, lockwasher, soldertab, lockwasher but I only have ony big lockwasher left and one small, and the small one doesn't fit the screw. 
And what should I do with the screw thats left? I've read trough the manual several times but I can't figure out where to put the last one.

 

[Todd R]

Post your question here: Bottlehead forum.
You will get a faster answer

 

[Feynman]

I would have posted in that forum if it weren't for the fact that someone have to approve my member before I can post.

 

[Yoga Flame]

 
Quote:

Hi! I just got my bottlehead crack kit this friday and yesterday evening I started to put the things in place, then I noticed that one of the rca-jacks looks really strange, I tried taking a rca-cable to test if it fit and it sure did, do you think it is something I should worry about?
 

I would be concerned about the signal and ground contacts shorting together when the RCA cable is connected.

 

[roadcykler]

I got that much anticipated e-mail today telling me the Crack has been shipped. 

 

[Tinola]

Same here! Yay! Will finish building by Sunday

 

[MrDavis]

I have my crack and speedball kit to.  Just waiting for the mail man to deliver the Axon film caps so I can start building it.

 

 

[skeptic]

Quote:

I have my crack and speedball kit to.  Just waiting for the mail man to deliver the Axon film caps so I can start building it.

 

I'd say build away.  As Beefy previously advised me, you will want to put in fly leads and zip tie mounts for the Axons before installing your speedball, but the Axons will actually go in last.

 

[Tinola]

I'd say build away.  As Beefy previously advised me, you will want to put in fly leads and zip tie mounts for the Axons before installing your speedball, but the Axons will actually go in last.

Sorry for my ignorance, but what are fly leads? Are they just wires soldered to where the capacitor should attach to so it can reach where the axon is placed?

 

[Beefy]

Correct. My post here shows how I did it.

 

[Tinola]

Thanks, am I limited to use a 250V Film cap? I'm looking around for other film caps besides axon and am wondering if there's a minimum uf and volts or maximum uf and volts I can use for the crack. Sorry, I don't know anything about electronics and I'm still new to DIY'ing. I'm getting there though.

 

[Beefy]

The cap should not be rated lower than 160V and 50µF. There is no real maximum, although you would need to make some other tweaks if you go above, say, 200µF.

 

[MrDavis]

Quote:

Correct. My post here shows how I did it.

Yep, I've seen your build and have been using it as a benchmark. 
 

 

[Tinola]

The cap should not be rated lower than 160V and 50µF. There is no real maximum, although you would need to make some other tweaks if you go above, say, 200µF.

Thanks a lot. Now that cleared stuff up.

 

[skeptic]

There was a chart posted on the BH forums a while back looking at the appropriate range for substitute output caps.  (It is referenced in this thread http://www.bottlehead.com/smf/index.php/topic,526.60.html but the link appears to be broken and the image does not display.) 
 
My recollection is that if you go below a certain threshold capacitance, it will result in bass roll-off, but that threshold varies based on the impedance of your cans.