Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Stuff4bikes on June 21, 2021, 07:02:44 pm

Title: Diode rectifier
Post by: Stuff4bikes on June 21, 2021, 07:02:44 pm

Can someone show me a schematic with the appropriate diode configuration for a NON center tapped transformer in a guitar tube amplifier?

I am confused on the (-) side of the rectifier with a safety ground.

Title: Re: Diode rectifier
Post by: sluckey on June 21, 2021, 07:19:52 pm

It's called a Full Wave Bridge Rectifier. Here's a real world example...

     http://sluckeyamps.com/revibe/revibe.pdf

And here's how it works...

Title: Re: Diode rectifier
Post by: Stuff4bikes on June 21, 2021, 07:26:45 pm

 Thank you. I understand how it works, I never see the bridge ground and the mains ground together.

So I can ground the mains and rectifier both to the chassis?

Title: Re: Diode rectifier
Post by: sluckey on June 21, 2021, 07:34:58 pm

Yes, both will connect to chassis, but not at the same place. Use a separate dedicated bolt for the mains ground. And ideally, the bridge ground should connect directly to the reservoir cap negative lead.

Title: Re: Diode rectifier
Post by: Stuff4bikes on June 21, 2021, 07:48:30 pm

Thank you sluckey......all I needed to hear....