Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: Moimanuh on October 02, 2024, 02:26:51 PM

Title: Crack 1.1 with speedball 110v to 220v or use a step down transformer
Post by: Moimanuh on October 02, 2024, 02:26:51 PM
Hi all, I purchased a pre built bottlehead crack 1.1 with speedball and it didnt come with a manual. So I would like to know if it can be converted from 110v to 220v or is it better to use a step down transformer? I have attached a picture so that we are 100% confirmed that it's a 1.1 version.Thank you
Title: Re: Crack 1.1 with speedball 110v to 220v or use a step down transformer
Post by: Paul Birkeland on October 02, 2024, 02:33:49 PM
Yes, that's a Crack 1.1.  Yes, you can covert it to run on 220, 230, or 240V.  Yours is wired for 120V for what it's worth, not 110V.

You can e-mail [email protected] to ask about purchasing a replacement Crack manual. 

That kit does look to be very, very nicely made.
Title: Re: Crack 1.1 with speedball 110v to 220v or use a step down transformer
Post by: Moimanuh on October 03, 2024, 09:26:52 AM
Yes, that's a Crack 1.1.  Yes, you can covert it to run on 220, 230, or 240V.  Yours is wired for 120V for what it's worth, not 110V.

You can e-mail [email protected] to ask about purchasing a replacement Crack manual. 

That kit does look to be very, very nicely made.

So I have the manual, but I am not sure how to do it, could you give me the page no. of the relevant topic in the manual, I dont see an option for 220v in the manual.
Title: Re: Crack 1.1 with speedball 110v to 220v or use a step down transformer
Post by: Paul Birkeland on October 03, 2024, 02:14:25 PM
The table of contents lists the voltage ranges right about in the middle. 
Title: Re: Crack 1.1 with speedball 110v to 220v or use a step down transformer
Post by: Moimanuh on October 04, 2024, 12:48:52 PM
The table of contents lists the voltage ranges right about in the middle.

Thanks found it. it looks fairly simple. Just to clarify is it okay if i put above 235v config but use it in areas with 220v- 230v? also apart from changing the wires to the different terminals, does it need any other changes? Thank you
Title: Re: Crack 1.1 with speedball 110v to 220v or use a step down transformer
Post by: Paul Birkeland on October 04, 2024, 01:10:14 PM
If you live in an area that's 220-230V, then you would use the configuration for greater than 225V and less than 235V. 

Just rewiring the primary of the power transformer is all that's required.
Title: Re: Crack 1.1 with speedball 110v to 220v or use a step down transformer
Post by: Moimanuh on October 04, 2024, 07:54:14 PM
If you live in an area that's 220-230V, then you would use the configuration for greater than 225V and less than 235V. 

Just rewiring the primary of the power transformer is all that's required.
Thanks. I will mostly be traveling through Europe, Uk and Asia for a while so would want it to work there. Sometime it might be 240v, so thought of going with the high voltage way.
Title: Re: Crack 1.1 with speedball 110v to 220v or use a step down transformer
Post by: Paul Birkeland on October 05, 2024, 06:57:11 AM
Sometimes 240V but mostly 230V operation would really be fine on the 230V nominal configuration. 
Title: Re: Crack 1.1 with speedball 110v to 220v or use a step down transformer
Post by: Moimanuh on October 06, 2024, 07:49:39 AM
Sometimes 240V but mostly 230V operation would really be fine on the 230V nominal configuration.

Thanks. I will be going with the 235v max setting then. Also do we need to upgrade the fuse or the default one is good enough?
Title: Re: Crack 1.1 with speedball 110v to 220v or use a step down transformer
Post by: Paul Birkeland on October 06, 2024, 07:08:04 PM
You can leave the fuse as-is. It's more amperage than you need on 220+ volts, but it's still such a small value that you'll still get adequate protection.