Bluesmaster grounding scheme

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roknroll
Posts: 225
Joined: Thu May 18, 2006 2:13 am
Location: New York

Bluesmaster grounding scheme

Post by roknroll »

Hi
Am about to complete a home sourced Bluesmaster 100w and can't seem to find a complete file containing a photo or a visio file or whatever on the accepted method of grounding for the 100w Bluesmaster. I have been able to pick up a few indicators here and there but nothing complete. Any help would be appreciated.
Jack
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Tonegeek
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Location: Winston-Salem, NC
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Re: Bluesmaster grounding scheme

Post by Tonegeek »

roknroll wrote:Hi
Am about to complete a home sourced Bluesmaster 100w and can't seem to find a complete file containing a photo or a visio file or whatever on the accepted method of grounding for the 100w Bluesmaster. I have been able to pick up a few indicators here and there but nothing complete. Any help would be appreciated.
Jack
Just use the same scheme as for the HRM, non HRM builds, etc. There should be some pix floating around this site that can give you most of what you need, and I know there is a big thread discussing grounding somewhere. There are a few variations on grounding that different builders employ. In general the d style amps have a bus bar that floats over the pots on the front panel. Nothing solders to the back of the pots in this case. The pots that are grounded (CCW terminal) connect to it with stiff wire and that holds it in place. Then the PS grounds go on one end, and the chassis is grounded to the other end. Between the two are the cathode grounds, and other small signal grounds. Personally, I don't use the chassis to carry any current so all jacks, etc are isolated from the chassis. The only other connection to the chassis I make is with the AC ground wire. If you do this, you will need to run a small wire from the common for the output tranny secondary to the ground bar for neg feedback to work correctly. Aiken amps site has a good info on proper grounding.
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