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Author Topic: Silver Sevens Capacitor Change  (Read 11206 times)

Offline BrianT

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Silver Sevens Capacitor Change
« on: April 15, 2012, 06:03:50 PM »
My set of Silver Seven's developed a loud pop (really loud) when I turned the amp off.
Even with the the level control turned all the way down and the pre amp turned off.

As I did not want to damage my speakers, I had to get it taken care off ASAP. Quick phone call to Bob Carver.
Bob gave me a couple of things to check out, one of them was a couple of caps that ground out the 660vdc B+ line.

So after checking them I found one was weak, time to change the caps. There are 3 of these caps in each amp so I ordered
6 x Jensen Audio Grade 47uf 450vdc caps. ( originals where Mallory (date code Sept 1989) 50uf 450vdc)
Chris at Parts Connexion told me the slight difference in values would not matter.

Due to the large size of the case, it turned out to be a very easy job, 30 mins per mono block.

After a quick test, all works fine. No pop's now ;D ;D ;D       

Brian
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Offline tinpan

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Re: Silver Sevens Capacitor Change
« Reply #1 on: April 15, 2012, 06:07:56 PM »
Look how nice those are under the skin. Are you good to go for another 20 years now?
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Offline BrianT

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Re: Silver Sevens Capacitor Change
« Reply #2 on: April 15, 2012, 06:32:26 PM »
Quote from: tinpan on April 15, 2012, 06:07:56 PM
Are you good to go for another 20 years now?

Robin.

I am sure there are a couple more caps that will need changing, I will talk to Bob at CF12
and find out which ones.

How are the Cherries doing?

Brian
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Vinnie Rossi L2SI integrated amp
Takatsuki 300B tubes
2 x Carver 275 Mono Block
Audience Front Row Bi wire Speaker Cables
Audience Front Row USB Cable
Audience Front Row RCA Cables
VPI Classic TurnTable (blk)
c/w Transfiguration Phoenix Cartridge
Auralic G2 server
B&W 803D3 (black)

Offline Kingman

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Re: Silver Sevens Capacitor Change
« Reply #3 on: April 15, 2012, 06:36:48 PM »
Brian... They look great and bet they sound better! Robin... congrats on the 180 purchase!!!!  :D
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OldiesButGoodies

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Re: Silver Sevens Capacitor Change
« Reply #4 on: April 15, 2012, 07:28:12 PM »
Great job!
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Offline Reverend

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Re: Silver Sevens Capacitor Change
« Reply #5 on: April 15, 2012, 09:52:47 PM »
It's pretty sweet you can get tech support from the Bobfather.  :o
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Offline OCCD

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Re: Silver Sevens Capacitor Change
« Reply #6 on: April 16, 2012, 11:07:25 AM »
Nice job, Brit!
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Offline BrianT

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Re: Silver Sevens Capacitor Change
« Reply #7 on: April 16, 2012, 06:16:08 PM »
Quote from: Reverend on April 15, 2012, 09:52:47 PM
It's pretty sweet you can get tech support from the Bobfather.  :o

Agreed
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Vinnie Rossi L2SI integrated amp
Takatsuki 300B tubes
2 x Carver 275 Mono Block
Audience Front Row Bi wire Speaker Cables
Audience Front Row USB Cable
Audience Front Row RCA Cables
VPI Classic TurnTable (blk)
c/w Transfiguration Phoenix Cartridge
Auralic G2 server
B&W 803D3 (black)

OldiesButGoodies

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Re: Silver Sevens Capacitor Change
« Reply #8 on: April 16, 2012, 07:42:09 PM »
Agree with Rev - you have direct access to the Pope!
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Offline tinpan

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Re: Silver Sevens Capacitor Change
« Reply #9 on: April 17, 2012, 07:56:32 PM »
Brian,

The cherry's are doing great.

Wayne, thanks. :)



I finished making the amp stands for them yesterday.

Total cost in amp stands $24 bucks
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Offline Kingman

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Re: Silver Sevens Capacitor Change
« Reply #10 on: April 17, 2012, 08:25:38 PM »
Quote from: tinpan on April 17, 2012, 07:56:32 PM
Brian,

The cherry's are doing great.

Wayne, thanks. :)



I finished making the amp stands for them yesterday.

Total cost in amp stands $24 bucks
...Man that is FN sweet!!!! Looking good Robin!!!! Brian, post some pics of that system of yours for us to drool over.... ;)
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Offline Sir Thrift-a-Lot

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Re: Silver Sevens Capacitor Change
« Reply #11 on: April 18, 2012, 08:43:13 AM »
Is that LaScala white or is that just flash reflection?
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Offline Reverend

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Re: Silver Sevens Capacitor Change
« Reply #12 on: April 18, 2012, 10:06:28 AM »
As the Canadians would say, "Beauty eh!"
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Offline BrianT

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Re: Silver Sevens Capacitor Change
« Reply #13 on: April 18, 2012, 06:27:59 PM »
Quote from: Kingman on April 17, 2012, 08:25:38 PM
Brian, post some pics of that system of yours for us to drool over.... ;)

Wayne.

I'm embarrassed, looking at Tinpan's setup. My setup does not look anything as nice
I have 9 components pilled up on 2 target stands.

But just for you here we go.

Brian
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Vinnie Rossi L2SI integrated amp
Takatsuki 300B tubes
2 x Carver 275 Mono Block
Audience Front Row Bi wire Speaker Cables
Audience Front Row USB Cable
Audience Front Row RCA Cables
VPI Classic TurnTable (blk)
c/w Transfiguration Phoenix Cartridge
Auralic G2 server
B&W 803D3 (black)

Offline BrianT

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Re: Silver Sevens Capacitor Change
« Reply #14 on: April 18, 2012, 06:29:14 PM »
Quote from: tinpan on April 17, 2012, 07:56:32 PM
Brian,

The cherry's are doing great.

Wayne, thanks. :)



I finished making the amp stands for them yesterday.

Total cost in amp stands $24 bucks

Robin.

Looks so nice, great amp stands.

Brian
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Vinnie Rossi L2SI integrated amp
Takatsuki 300B tubes
2 x Carver 275 Mono Block
Audience Front Row Bi wire Speaker Cables
Audience Front Row USB Cable
Audience Front Row RCA Cables
VPI Classic TurnTable (blk)
c/w Transfiguration Phoenix Cartridge
Auralic G2 server
B&W 803D3 (black)
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