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Forums :: Ask Instructor David Barrett

Bassman chronicles parts

2 replies [Last post]
Wed, 12/05/2012 - 07:37
528hemi
528hemi's picture
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Joined: 12/19/2009

Hi David,

In one of the videos, Mark mentioned there woudl be a parts list.
I was hoping to find out where I can purchase the Bias pots that Mark used.
Also, with the compu-bias meter, were you able to play while it was connected and then adjust or had
to remove it each time?

Last question, what did you finally goes with for V1,V2,V3 tubes in the 90 reissue and are you still using the JJ's power tubes biased at 34.

A link would be helpful.

Regards,

528hemi

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Thu, 12/06/2012 - 08:57
#1
David Barrett
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ExpertHead InstructorTeacher 10Level 10
Joined: 12/20/2009
Answer

Thanks for reminding us of that, I'll send a note to Mark and we'll get to work. You can play with the bias meter in. We ended up somewhere between 32 and 34. Yes, I have the JJ's still in there. V1 = 12AY7, V2 = 12AX or 12AT (either one sounded fine) and V3 = 12AU7.

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Wed, 01/02/2013 - 21:47
#2
David Barrett
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ExpertHead InstructorTeacher 10Level 10
Joined: 12/20/2009
Update

Mark and I just finished this. I expect it to be up on the site within three days.

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