Fuse Blows Instantly on First Power-On [resolved]

[BenZ124]

Hi everyone,



I’m having trouble with my Bottlehead Crack and could use some guidance. Here’s what happened:

• I followed the build instructions and did a resistance check, everything looked fine.
• When I powered on my build to do the voltage check, a loud buzzing noise came from the transformer and the fuse blew.
• Since my soldering is messy (first build!), I suspect a wiring issue, however I cannot figure out where the problem is.

I’d greatly appreciate any advice or things to check before I risk replacing the fuse again.

Thanks in advance

 

[Paul Birkeland]

It looks like you have a backwards UF4007 diode in your power supply.

You will get no left channel with the white wire connected to the headphone jack as it is.

-PB

 

[BenZ124]

It looks like you have a backwards UF4007 diode in your power supply.

You will get no left channel with the white wire connected to the headphone jack as it is.

-PB

Thanks so much for your help, Paul. I resolved all the issues and now it works perfectly!