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Mitsubishi DA-A10

I am considering changing the capacitors in this amp I picked up. I am not electronically trained, but I am relatively handy having built my own house when i had more time many years ago, and graced with lots of curiosity. I realize professionals exist for this purpose, but the cost/benefit ($250-300 for the recap) for the application of this amp isn't that attractive. Looks like about 14 capacitors- about half Elna and the others Rubycon. I did some research and lots of love for Elna Silmic capacitors but cannot find all of the voltage/uf ranges that are in the existing amp. Between Nichicon and Elna I think I can get it covered- but if Elna has the best sound preference would be to do it right. Plan to replace them all regardless of good or bad since I don't know how to test. I do have a multimeter. I suppose if I get a bad new one I will need to do some testing and may cross that bridge then.

So now to my here is my question- two of the capacitors 80V 470 UF have three leads- +, -, and NC. I have researched what the NC means, but haven't found suitable 3 leads on line. Any help appreciated.

Please, if the response is "stop being an idiot and take it to a qualified technician", that isn't going to happen as I am curious about how this stuff works. I understand as professionals if you prefer not to contribute. Thanks in advance.
ovinewar
ovinewar's avatar
ovinewar OP
172 posts
 
So finished everthing today and fired it up using the variac. The sound was unbelievable. Even my wife- who isnt that interested, said it sounded great. Could be she was reacting to my ear to ear grin, but it really sounded good. I assume when caps burn in it will improve. Thanks to all. 

Now takling an old Nikko tuner!
imhififan's avatar
imhififan
2,218 posts
 
Congratulations!
Please tell us more about the progress of nikko tuner.
ovinewar's avatar
ovinewar OP
172 posts
 
No progress thus far. It has a bajillion capacitors! They all looked pretty good. Issue is it will not tune on a station. I have been googling but havent found a good solution as of yet.
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ovinewar's avatar
ovinewar OP
172 posts
 
Thank you viridian. I have both the f-20 and the f-10, as well as a c20 and agree the tuners are great. The Nikko isn't a cap issue- most likely something simple in an open circuit that will not allow it to lock on a station.  I am not going to put too much effort into it- I just dont like to trash things that are vintage and well made. 

 I have several vintage Mitsubishi pieces- 4 amps and accompanying pre's and tuners. In my uneducated opinion, they are really well made and sound fantastic. The amps had funky speaker connectors but I discovered an easy upgrade to banana posts that looks factory. I drive Vandersteen's vertically biamped with 2 da-15's and they sound incredible to me. I am weak on sources. I have older CD players but need to upgrade or consider a streaming device. Any suggestions sub $500-700 used is welcome. 
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