Hey guys
I am trying to get 22uf 35V or 50V Bipolar capacitor
I tried ebay. What I got was from Italy. The shipping charge was too much.
Is there any one in here that could do me a favor and sent me. I can pay via paypal if the price is reasonable.
I need around 20pcs.

Lemme know if any one is upto it.

 

Depending on the nature of the signal, two caps back to back in a pinch!.
Max.

 

http://www.gme.cz/ceb-22u-35v-hit-enr-6-3x11-rm2-5-bulk-p123-574

How many of them do you need?
I could be able to do it for you but earliest on monday :/

 

Hi R!f@@ !!

Duh... [ me ] by bipolar you mean the ones that have two capacitors in one can with a common negative...

I have a HUGE Allied catalog I can look up an address and part # if that will help... the order would be up to you...and I never could understand why outfits or individuals have to pad shipping for such an obvious extra profit... Bastages...

Just like two caps back to back. But I need the space and the board is already designed. So I need to fit to the space.

http://www.gme.cz/ceb-22u-35v-hit-enr-6-3x11-rm2-5-bulk-p123-574

How many of them do you need?
I could be able to do it for you but earliest on monday :/

This is what I need. I think. I am trying to make a Gainclone using LM3886. It uses a 22uf BP but it does not state which voltage, so I figured I would go for 35V. May be I need less voltage but I cannot tell.

Any one care to look at the data and tell me what should be the minimum voltage.

@Shagas.

I will PM u my address.

Thank you so much

 

Okay no problem , but as I said : Monday is the earliest . I'll check in again on sunday

 

Do you have a link or a schematics for your gainclone.

 

See link for diagram
Here...
Figure 2, C2 is 22uf

 

Have you tried with an electrolytic capacitor? In the design example from the datasheet figure 1. They have used a standard electrolyte capacitor not a bipolar electrolytic capacitor in the same place. So I think it is just an drawing error
Edit: Huh...Looking at the schematic in the datasheet one more time. They have used a bipolar capacitor (ouch). Given the frequency range. A a bipolar electrolytic capacitor will probably do. And they also cost less. Than other choices that can be quite expensive in that value

 

Depending on the nature of the signal, two caps back to back in a pinch!.
Max.

Not sure how it applies to a pair of back to back polar electrolytics, but normally 2 equal capacitors in series equals 1/2 the capacitance.

Apparently; if you put clamp diodes to prevent reverse charging on both caps, series connection doesn't halve the capacitance.

 

Hey guys
I am trying to get 22uf 35V or 50V Bipolar capacitor
I tried ebay. What I got was from Italy. The shipping charge was too much.
Is there any one in here that could do me a favor and sent me. I can pay via paypal if the price is reasonable.
I need around 20pcs.

Lemme know if any one is upto it.

For 22uF; you might want to check out multilayer ceramic chip - some manufacturers also do resin dipped leaded versions.

They're smaller than electrolytics (especially non-polar ones) and have very low leakage and ESR.

 

I prefer bipolar.

Any one figured out the exact capacitor voltage tht would be needed minimum.
Or is 35V OK.

Please lemme know the price first.

 

The question is, do you need that cap at all?

 

The question is, do you need that cap at all?

Very funny t0.
Of course I need the capacitor. In fact I need another.

I have the speaker protector tht uses a BP.
So I decided to change the voltage and be safe.

Here is the updated list.

1. 22uf 50V BP - 50pc
2. 10uf 50V BP - 50pc

This is final on bipolar caps. All others I can get.
Where is Shagas by the way.

 

Very funny t0.
Of course I need the capacitor. In fact I need another.

I guess the most important role of that cap is to ensure a gain of 1 for DC. But if you have a DC block in the stages before. And at the same time include a speaker protector. I would say it could certainly be discussed how important that cap are

 

U are telling me tht it is not needed .

 

U are telling me tht it is not needed .

It has something to say for the amplifier frequency response. It is not needed for the amp to work strictly speaking

 

Sorry , I had some work to do .
I've start lectures on monday morning so I can run down to the store then and send them in the afternoon.
Pm me how many you need and your adress of course
They cost 6.30 Kc each which is 0.33 USD

 

It has something to say for the amplifier frequency response. It is not needed for the amp to work strictly speaking

U are confusing me.
I am using a active crossover prior to amp from 100Hz to 20Khz.
The L+R channel uses two amps per channel (LM3886) .
One for high and one for low/mid.

High is HP filter from 3Khz and above.
Low/Mid is band pass from 100Hz to 3Khz.

Plus a speaker switch on and DC protector circuitry.

Ur info is enlighting. I will try it. But for future projects I might need the capacitor.

Thanks t0

 

You can always put some space for it on the board. And just strap it if not needed. If you have a second order high/band pass filter (100/3KHz) before the stage. I think you will not need that cap. At least not hear any difference with or without it.

 

C2 is subjected to only a few mV swing. A 6.3V ceramic should suffice.