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490t leaking caps??

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MRHP

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TFM-55

Posts: 776

Joined: Wed Jan 18, 2012 2:36 pm

Post Sun Mar 25, 2012 10:07 pm

490t leaking caps??

I bought a second 490t and of course had to take the lids off and compare. After hearing about leaky caps on the sunfire amps I looked close and noticed on my original 490t there are some things (caps?) with a brown substance leaking out on to the board. Can a cdp have leaky caps? And while Im asking can a TFM-75 have leaky caps?
TFM-75 serial #0001
PT-2400 serial #0001
Lightstar serial #0008
Lightstar serial #0008
Carver Black Magic 20/pair
300x2
SD/A 490t
Sunfire Tube preamp
DENON DP-62L TT
ProJect TT Tube preamp
Technics RS-1500US Reel to Reel
DQ-6c's
DQ-20's
JL Audio 12W7's
After showing SNOOP65 a set of outrageously expensive tubes on ebay he says:
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!!
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mbskeam

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SILVER-7t

Posts: 1830

Joined: Mon Jan 25, 2010 2:32 am

Location: Woodinville Wa

Post Sun Mar 25, 2012 10:35 pm

Re: 490t leaking caps??

the brown you see may be glue. is this substance really stuck to the board?
as all the carver gear is 20yrs plus old, the electrolytic caps can leak or start to break down, which ones is hard to say.
I recapped my 75's power supply, not that I found any that had signs of leaking.
got pics

ps
one of my 45 amps had one of the big power supply caps let go and a 15 had a few leakers
Mbskeam


#1 BLACK BEAUTY's made by the man, the myth, the legend Bob Carver
CARVER: TFM-75, TFM-45(3), SD/A-490T
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MRHP

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TFM-55

Posts: 776

Joined: Wed Jan 18, 2012 2:36 pm

Post Mon Mar 26, 2012 8:42 am

Re: 490t leaking caps??

My original 490 board has the "stuff" on it. The new to me 490 is clean. Ill get some pics up maybe tonight.
TFM-75 serial #0001
PT-2400 serial #0001
Lightstar serial #0008
Lightstar serial #0008
Carver Black Magic 20/pair
300x2
SD/A 490t
Sunfire Tube preamp
DENON DP-62L TT
ProJect TT Tube preamp
Technics RS-1500US Reel to Reel
DQ-6c's
DQ-20's
JL Audio 12W7's
After showing SNOOP65 a set of outrageously expensive tubes on ebay he says:
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!!
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F1nut

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SILVER-7 TUBE AMP

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Joined: Tue Nov 11, 2003 3:31 am

Location: The Mars Hotel

Post Mon Mar 26, 2012 6:37 pm

Re: 490t leaking caps??

Can a cdp have leaky caps? And while Im asking can a TFM-75 have leaky caps?


Any electrolytic cap can and will leak given enough time.
Political Correctness...defined

A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.



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