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Old 9th January 2003, 10:20 AM   #1
Bas is offline Bas
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Question ROE Capacitors

How High-End are ROE Caps?
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Old 9th January 2003, 11:07 AM   #2
Electrons are yellow and more is better!
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ROE, if you mean Roederstein (Germany) makes normal industrial quality. We use them at work and they are carefree (we have bought >1000 000 and they never has caused us trouble) but we had some problems the elelctrolytics. But we were to blaim ourselves because we used them beyond their limits and one day they were slightly better than they promised.....before they were MUCH better than they did promise.

Nowadays we use Rubycon (excellent) and RIFA (the best) and Lelon (seems to be good, so far).

Roederstein has absolutely no high-end reputation but this doesn't mean a thing (according to me).

2.5% polypropulene is quite nice, the green polyester not so bad either.
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Old 9th January 2003, 11:34 AM   #3
OliverD is offline OliverD  Germany
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IMHO, Roederstein does have "high end reputation", at least in Germany.

Some manufacturers point out in their brochures that they are using Roederstein electrolytics - in the power supply.

There are many excellent capacitors who have only made it to some local reputation - there is this company EMZ (Elektromanufaktur Zangenstein) which bought the production machines for Styroflex (KS) capacitors from Siemens and continued to make them after Siemens stopped the production...

Now they produce some nice KP capacitors w/ 1% tolerance - I use them quite often.
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Old 9th January 2003, 12:09 PM   #4
Electrons are yellow and more is better!
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Quote:
Originally posted by AMT-freak
IMHO, Roederstein does have "high end reputation", at least in Germany.

Some manufacturers point out in their brochures that they are using Roederstein electrolytics - in the power supply.

There are many excellent capacitors who have only made it to some local reputation - there is this company EMZ (Elektromanufaktur Zangenstein) which bought the production machines for Styroflex (KS) capacitors from Siemens and continued to make them after Siemens stopped the production...

Now they produce some nice KP capacitors w/ 1% tolerance - I use them quite often.
I have used these round transparent things but they were soooo sensitive for heat. Hardly possilble to solder at home made pcb's with groundplanes, escpecially those with 70µm (2 oz?)copper.

I think 2.5% is quite enough and if I really want to have an exact value I use my 0.1 % LCR bridge.

But still Roederstein (electrolytics) is worse (if we only talk lifetime) than the other brands we use.
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Old 9th January 2003, 12:15 PM   #5
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Question Roe Caps

I have a few caps wich has the label: 10/40. What is the value of these caps?
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Old 9th January 2003, 12:33 PM   #6
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Probely 10µF /40 V. Do you have type also? EKM EKMG, EBS etc.?

Is it yellow and axial? Black and radial?
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Old 9th January 2003, 12:51 PM   #7
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It's dark red with white label and it looks "old". The bottom is yellow and round.
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Old 10th January 2003, 02:43 AM   #8
OliverD is offline OliverD  Germany
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@peranders

I didn't mean those transparent axial Styroflex capacitors... They are available from different sources, mostly 2,5%.

What I meant were the little orange boxes with pins in two opposite corners... They were available as KS and KP, had 1% tolerance and the pin connected to the outer side of the foil was marked - so in your filter, you could connect this pin to GND and you'd have a shielded capacitor

Those were really quality parts!

Here's a picture of the EMZ types
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Old 20th December 2009, 11:14 AM   #9
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Old 20th December 2009, 12:30 PM   #10
mjf is offline mjf  Austria
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Quote:
Originally Posted by Bas View Post
It's dark red with white label and it looks "old". The bottom is yellow and round.
hello.
.......should be elco's with 10uf/40v.........and a plus sign on top (the side of the plus pole).
old parts,e.g. i found them in old b&o receivers and so on..........
greetings
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