Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: TexasRugger on May 17, 2010, 04:52:47 PM

Title: Noob Question
Post by: TexasRugger on May 17, 2010, 04:52:47 PM

Sorry, got to be the first to ask a truly newbie question.  I've built the amp (experienced no major difficulties thanks to the outstandingly clear instructions) and am at the point of measuring the amp before I power it up. I've done the resistance testing and am ready for the next part.  Am I supposed to power this thing up while its sitting upside down?   Do I turn it right side up after it's been powered off?   Why is terminal 12 a better proxy for ground than the ground wire (E)?  Thanks,

Tex
aka Steve

Title: Re: Noob Question
Post by: Paul Birkeland on May 17, 2010, 07:00:53 PM

Quote from: TexasRugger on May 17, 2010, 04:52:47 PM

I've done the resistance testing and am ready for the next part.  Am I supposed to power this thing up while its sitting upside down?   Do I turn it right side up after it's been powered off?   Why is terminal 12 a better proxy for ground than the ground wire (E)?  Thanks,

Yes, stick the tubes in and power it up with the chassis plate upside down.  Terminal 12 is better than the IEC ground terminal because there are less opportunities to accidentally short something out. 

Title: Re: Noob Question
Post by: Grainger49 on May 18, 2010, 01:37:05 AM

Seems there was a SNAFU with the manual in one shipping.  Check this thread for the corrections:

http://www.bottlehead.com/smf/index.php/topic,657.0.html

Be certain you have the wiring as Doc has corrected it.