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Grounding scheme for a 2 chassis amp

141.239.172.61
Posted on November 14, 2016 at 13:06:13
DAK
Audiophile

Posts: 2712
Location: PACIFIC
Joined: August 8, 2010
 Is there any written research or protocol for establishing ground on a 2 chassis amp with power supply on 1 chassis and the outputs on the 2nd chassis. I have the power transformer mounting bolt as the primary ground . This point establishes the ground bus. The ground bus goes to the umbilical connector whiich connects to the 2nd chassis. The ground bus is then reestablished on the output chassis.
So, i am wondering if it is necessary to ground the 2nd chassis. cheers, Dak

 

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RE:Thank you DD, posted on November 14, 2016 at 19:03:09
DAK
Audiophile

Posts: 2712
Location: PACIFIC
Joined: August 8, 2010
 This article is just what i was looking for. I have read a lot about grounding but the knowledge has been piecemeal. Now i have it saved for future reference and cogitation. thanx a million. Dak

 

Speaking of twin chasis,have you ever played with these?, posted on November 23, 2016 at 21:29:43
Michael Samra
Dealer

Posts: 36118
Location: saginaw michigan
Joined: January 30, 2005



" Leave it to Heathkit.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken

 

RE:I decided to get a W4 instead, posted on November 24, 2016 at 16:54:44
DAK
Audiophile

Posts: 2712
Location: PACIFIC
Joined: August 8, 2010
 The Heatkit w4 is the same amp, essentially. I was trying to some w3 but it was hard to find enough good ones to make a set. The people selling them would inevitably break them up and sell it as seperates.

 

RE:I decided to get a W4 instead, posted on November 26, 2016 at 11:18:46
kyle
Audiophile

Posts: 1839
Location: London Ontario
Joined: September 29, 1999
 My W3s came with Acro TO-300 outputs and my W4s came with what I think are Chicago Transformers 54-29 - model # is correct but I can't remember the manufacturer.
The W3s are more extended in both lows and highs.
I re-purposed the W4s as 2A3PP amps which are better than either of the originals.

 

RE:I moved on to eico hf60, posted on November 26, 2016 at 14:03:47
DAK
Audiophile

Posts: 2712
Location: PACIFIC
Joined: August 8, 2010
 I thought why d... around. Go for the gusto!

 

RE: Grounding scheme for a 2 chassis amp, posted on November 14, 2016 at 17:26:48
bouncy ball
Audiophile

Posts: 1221
Location: British Columbia
Joined: July 26, 2003
 I did the same here. The "grounding network" of the signal chassis joint the power chassis ground via the umbilical cord. That it. No extra grounding on signal side chassis.

 

RE: Grounding scheme for a 2 chassis amp, posted on November 14, 2016 at 17:24:47
Dave Davenport
Manufacturer

Posts: 916
Location: North Carolina
Joined: March 20, 2002
 See section 4.3 on page 44.

Dave

 

RE: Grounding scheme for a 2 chassis amp, posted on November 15, 2016 at 03:29:56
tube wrangler
Manufacturer

Posts: 2484
Location: USA
Joined: January 29, 2007
 Hi Dave! Good stuff!

I would love to hear from you.

CALL ME at 1-406-222-9229-- Then I can get up to speed with you!

---Dennis---

 

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