need source of sprague powerlytic 1600 uf 200vdc cap

Sep 16, 2007 5 Replies
B

I am working on my daughters Marantz 1977 player piano. I've got some ac type buzz in the 170 volt dc solenoids. I figure that the filter cap is bad (Sprague suggests 1000 hour life span, so 1977 to 2007 that's 30 years, so



1000 divided by 30 = 33 hours per year,, bet its got more then that, not to mention just the drying effects of age!!!) I've tried to find them, new, but can seem to get the internet to work for me today.... So what vendors would you all suggest?????

here are the details of the cap



Sprague powerlytic



36d
16000-200dc
7834l 3104 made in the USA.

I am guessing that 78341 is a date code, Interesting that the sales slip on the piano is 1977....



Thanks in advance Bob in phx.


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W

The 1000 hour lifespan refers to high-temperature operation, not "normal" use.

Try DigiKey, Allied, MCM, etc.

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B

thank you sir.... I must have mis-read the specs....

Since I have hum and since the cap is 30 years old, I am going to replace it anyway.... again thanks.

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D

Sprague is now a division of Vishay. The 36D series of capacitor has changed, so you will just have to search for capacitors having the same (or close) value and physical size. The DC voltage spec is critical... get one that has at least

200V rating. If this capacitor is only used to filter the supply for solenoids, then you might be able to skimp on the capacitance.. maybe 20% - 30% lower than the 16000 uFd value. Make sure you're sitting when you look at the price of these units.. they're not cheap!!!

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are good sites to start with.

Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) "In theory, there isn't any difference between theory and practice. In practice, there is." - Yogi Berra
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W

But don't go over 200V, unless you have no choice.

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B

found them at allied electronics and placed the order today... should be here sometime next week.

bob in phx.

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