Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: marshallguy on August 05, 2023, 12:12:47 pm

Title: Grounding schemes
Post by: marshallguy on August 05, 2023, 12:12:47 pm

https://el34world.com/charts/grounds.htm

Question,

Per this link above charts, where the circuit board is, there is a “Main board ground wire” that ties back to the chassis ground point

1. What part of the main board circuit board would that be?

2. Is the screen filter node part of the B+ filter cap section?

Thanks.

Title: Re: Grounding schemes
Post by: sluckey on August 05, 2023, 12:27:58 pm

1. Main board ground wire is for the power amp and bias circuits. I like to include the PI as well.

2. yes

Title: Re: Grounding schemes
Post by: marshallguy on August 05, 2023, 01:50:58 pm

Quote from: sluckey on August 05, 2023, 12:27:58 pm

1. Main board ground wire is for the power amp and bias circuits. I like to include the PI as well.

2. yes

Ok that thanks that how I ground too.