AKG c414 EB P48 tantalum values

[vintaguest]

Hello guys, can somebody provide the correct values of the tantals in the EB P48? Thanks in advance.

 

[Khron]

How's this for a start?

 

[vintaguest]

Thank you Khron! I've managed to find the service manual here, so it has all the necessary datas.

 

[Khron]

May well have been quicker (not to mention more efficient) to just google "c414 p48 schematic" from the get-go..?

 

[vintaguest]

Belive or not, besides this forum it cannot be found.

 

[Khron]

Oh can't it? That would presume that you've already tried, and couldn't find anything.

https://www.google.com/search?q=c41...4_DxMQ_AUoAXoECAIQAQ&biw=455&bih=694&dpr=2.38
I wonder what that first result there is...

 

[vintaguest]

sorry, I reply wrong. Thought about the service manual.

 

[vintaguest]

How's this for a start?

c12, 17, 18 has only a 22μF value in the manual, but no voltage mark. Have an idea about that?

 

[Khron]

Two observations there.

1) Those three capacitors are 22nF , not uF (as in, nanofarads versus microfarads).
2) They are most definitely film or ceramic capacitors, NOT tantalums.

As such, quite often the lowest voltage rating for film caps ar those values is 63V anyway, so no worries there.

 

[vintaguest]

Two observations there.

1) Those three capacitors are 22nF , not uF (as in, nanofarads versus microfarads).
2) They are most definitely film or ceramic capacitors, NOT tantalums.

As such, quite often the lowest voltage rating for film caps ar those values is 63V anyway, so no worries there.

Thank you Khron!

 

[vintaguest]

Which are the best quality cap manufacturers?

 

[Khron]

What caps?

 

[vintaguest]

What caps?

tantalum

 

[Khron]

No idea, i avoid them. Not quite like the plague, but i trust electrolytics more. Less chance of failing short-circuit, more forgiving of minor "abuse" etc.

No comments on "sound" though.

 

[Whoops]

tantalum

Whatever Farnell or Mouser have for sale

 

[vintaguest]

Whatever Farnell or Mouser have for sale

Thanks!

 

[vintaguest]

No idea, i avoid them. Not quite like the plague, but i trust electrolytics more. Less chance of failing short-circuit, more forgiving of minor "abuse" etc.

No comments on "sound" though.

Can a tantalum be wrong when everything seems to be ok on its surface, meaning looks like a good one?

 

[rock soderstrom]

Can a tantalum be wrong when everything seems to be ok on its surface, meaning looks like a good one?

Yes, totally possible. Only measuring the component will give you certainty.

 

[Whoops]

Can a tantalum be wrong when everything seems to be ok on its surface, meaning looks like a good one?

Most problems with some really old Tantalum capacitors is that they fail short circuit, visiually they can look ok but it's pretty easy to measure with the DMM if they are short circuit or not.

 

[gyraf]

I've replaced quite a few failing tantalums in old 414's , 426's and 451's over the years - seing both short and open fails..