Replacement caps

[Chrisr3521]

hi having just replaced a blown channel in my nakamichi amplifier 1, i quite fancy replacing the big power caps which are nichicon great supply negative 10000uf 63v, these i gather are no longer avalible has anyone an idea of sutible replacements, also can i raise the value of the caps without any problems?

thanks.

 

[Piercarlo]

Re: repalcement caps

hi having just replaced a blown channel in my nakamichi amplifier 1, i quite fancy replacing the big power caps which are nichicon great supply negative 10000uf 63v, these i gather are no longer avalible has anyone an idea of sutible replacements, also can i raise the value of the caps without any problems?

thanks.

10 mF / 63 Volt is a quite standard value. Don't raise caps value if you don't know the detail of the entire PSU circuit (especially rectifiers and power transformers data.

Hi
Piercarlo

 

[XEAGLEKEEPER]

Piercarlo Thats 10,000 mfd not 10 mfd.

Reddish
I have a couple 10,000 @ 80vdc 105 degree Nichicons.Email me if your interested. (New old stock)

Cheers Dave

 

[Piercarlo]

Piercarlo Thats 10,000 mfd not 10 mfd.

Reddish
I have a couple 10,000 @ 80vdc 105 degree Nichicons.Email me if your interested. (New old stock)

Cheers Dave

with 10 mF I've intended 10 "milli"Farad, not "micro"Farad (microfarad i use to write as "uF").

Hi 🙂

Piercarlo

 

[AndrewT]

Hi Eagle,
you've got your milli and micro mixed up.

From what I have seen in the past the US is terrible at sticking to the convention and mis-use both m and M when they mean something else. Some even get k & K mixed up.

 

[Minion]

I have a Bunch of 10,000uF 63v Samwah Snap in Capacitors (NOS) and I can sell you a few for a Good price if you want them, Like maybe $3 or $4 each Pluss shipping.....

Let me know if you are interested....

Cheers

 

[XEAGLEKEEPER]

Andrew

you've got your milli and micro mixed up.

No I don't....Just an old fart who refuses to change!!!!

From what I have seen in the past the US is terrible at sticking to the convention

Thats what makes us unique were "unconventional" "Always keep the b**tards guessing.LOL

So they don't use "uuf" anymore or "mfd" damn!!! Its like learning this stuff all over again. Give me time guys hell I just got the hang of 2k2 being 2.2 kilohm.Little steps...LOL😉

 

[XEAGLEKEEPER]

Andrew
Just so I don't misinterperate again

Some even get k & K mixed up.

please explain.

Dave

 

[AndrewT]

Hi,
k=kilo=10^3 multiplier.
K=degree Kelvin= temperature units.
K seems to be interchangable with C, I don't know if there is a definition difference. Can someone enlighten?

All the multipliers above 1times are upper case except k to avoid confusion with K.
All the multipliers below 1times are lower case and that also avoids confusion between m & M (pity some still confuse u & m (u=mu=micro=10^-6).

 

[scottw]

I think the Nichicon Great Supply series of caps were replaced by the Super Through (KG) series.

http://www.nichicon-us.com/english/seihin/alm_larg/list_f.htm

A link to a pdf for the KG series is at the bottom.

The only outfit I know that sells them is Michael Percy in the US:

http://www.percyaudio.com/


Scott

 

[Piercarlo]

. K seems to be interchangable with C, I don't know if there is a definition difference. Can someone enlighten?

Is exactly the same unit with displaced start of graduated scale. "°K" Kelvin start "0" from the absolute physical zero (i.e. total absence of any kind of moving or speed in the matter - for this reason "°K" are ALWAYS positive; don't exist any "negative" °K). "°C" start instead from the icing point of water and admit negative values.

In practice the ony signficative difference between "Kelvin" and "Celsius" is a constant of displacement in graduated scale: 0 °C = 273.15 °K, usually rounded to 273 °K.
For rounding purposes, when charactering semiconductor devices respect to ambient temperature, °K are set to 300 °K (27 °C) instead of 278 °K (25 °C)... Is not a great concern, except in remind that engineers are not ever so perfect as they claim to be... 😉.

Hi
Piercarlo

 

[AndrewT]

Thanks Piercarlo.
I see I was confusing Celsius and Centigrade for interchangeability.

 

[XEAGLEKEEPER]

So to avoid confusion I will use fahrenheit and you guys can do the math conversion. I currently work in the pharm/Biological for animals .we use on a daily basis kilo,celcius,milli, yada yada yada.
But to be truthful I,ve never ever until yesterday heard of a millifarad.... farad,micro,pico,nano. and always assumed mf=uf hell just look in a Allied or Newark catalog they use them as the same. I guess your never to old to learn something🙂

 

[AndrewT]

Allied or Newark

US based by any chance?

 

[XEAGLEKEEPER]

http://www.alliedelec.com/?source=771
http://www.newark.com/
http://www.mouser.com/index.cfm?handler=home

Of course they are USA based. Why would I buy from overseas when I can get it here.. larger selection,cheaper,faster shipping,no duty or tariff charges .


Anyway so 10mfd is 10uf or .01mf

 

[AndrewT]

Hi,
the two examples in the pic look like
10000uF correctly marked
7800uF but incorrectly marked as 7800MFD (7800MFD would just about fill your house)