Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: jt on September 20, 2014, 10:49:50 PM

Title: Left channel cuts out [solved]
Post by: jt on September 20, 2014, 10:49:50 PM

The left channel on my crack cuts out after about 10 minutes. Swapped tubes and get the same result. Voltage check is ok. How can I troubleshoot this?

Thanks, Jay.

Title: Re: Left channel cuts out
Post by: NightFlight on September 21, 2014, 06:19:46 AM

To start, swap the input RCA cables.

Title: Re: Left channel cuts out
Post by: Doc B. on September 21, 2014, 06:25:23 AM

Visually inpect every solder joint to see if you missed soldering one. Cutting out after a few minutes is usually something that happens because something expanded as the amp warmed up and shifted, losing contact.

If everything looks good, redo your voltages while in the amp is warm and post any big deviations from the figures in the manual. If you can find what is getting disconnected we can isolate the problem.

Title: Re: Left channel cuts out
Post by: jt on September 22, 2014, 11:28:35 AM

I figured Doc was right about heat expansion so I re-flowed all the socket connections and terminal strip connections.
Fixed the problem.

Thanks for the help!

Jay.