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Author Topic: TAD or JJ caps.  (Read 8153 times)

Dmoney

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TAD or JJ caps.
« on: August 12, 2011, 01:57:15 AM »
Anyone used the 100uf 500V axials made by TAD or JJ?
I see them on tubetown and the TAD website. I usually use F&T's but I kind of want 500V rated caps and I can't find 100uf@500V axial F&T's. The the JJ's or TAD's are better I might use them this time round.

Transcend

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Re: TAD or JJ caps.
« Reply #1 on: August 12, 2011, 06:16:04 AM »
Ive heard great things about the JJ caps.

Especially the big electrolytics

Why cant you find the F&T? is it still the supply problem or are there just no exact values?

darkbluemurder

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Re: TAD or JJ caps.
« Reply #2 on: August 12, 2011, 08:45:45 AM »
Anyone used the 100uf 500V axials made by TAD or JJ?

In fact I used both (on different amps) and they work well.

Cheers Stephan

ericsabbath

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Re: TAD or JJ caps.
« Reply #3 on: August 13, 2011, 09:09:13 AM »
diezels come with ruby caps, which are probably the same as TAD
I'd take a sprague over them, anyway
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Dmoney

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Re: TAD or JJ caps.
« Reply #4 on: August 13, 2011, 09:16:53 AM »
I find the sprague are hard to find and expensive

It seems hard enough to get hold of a range of values in F&T's, JJ, TAD, Evox Rifa... let alone sprague or mallory.
I could nosey at mouser and farnell, but I don't want to pay £15 postage for 4 capacitors.

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Re: TAD or JJ caps.
« Reply #5 on: August 13, 2011, 09:18:54 AM »
I find the sprague are hard to find and expensive

It seems hard enough to get hold of a range of values in F&T's, JJ, TAD, Evox Rifa... let alone sprague or mallory.
I could nosey at mouser and farnell, but I don't want to pay £15 postage for 4 capacitors.

I agree whilst the sprague stuff is great it can be awkward to find.

Have you checked bluebell audio? if i remember correctly they stock a large amount of spraque stuff

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Re: TAD or JJ caps.
« Reply #6 on: August 13, 2011, 09:36:50 AM »
actually scratch that they dont seem to have any caps at all now.

Dmoney

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Re: TAD or JJ caps.
« Reply #7 on: August 13, 2011, 09:40:40 AM »
yeah! no caps. pretty odd.

hoffman appears to be down too but I wouldn't buy from him unless i really had to. Just cos he's in the US.

I'm sure there are better rated caps out there than the sprague and mallory stuff too.

I'm gonna use the TAD i think. The temperature rating on the JJ's is for 70degrees while the TAD is 85 on the 100uf/500V and 105 on the 47uf/500V. For longevity it looks better to use the TAD.

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Re: TAD or JJ caps.
« Reply #8 on: August 13, 2011, 09:42:15 AM »
Hotrox have a few of the sprague etc

but theyre values like

100uf/350v 100uf/385v

good luck with the erm i guess jcm800?

HTH AMPS

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Re: TAD or JJ caps.
« Reply #9 on: August 13, 2011, 12:58:15 PM »
Never tried the TAD or JJ caps but have heard from people I trust that they didn't fare well when compared against the F&Ts.

You can get 100uF/450v axial F&Ts from Audiocap here in the UK... http://www.audiocap.co.uk/high-voltage-axials-electrolytics-over-300v-ft-17-c.asp


Dmoney

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Re: TAD or JJ caps.
« Reply #10 on: August 13, 2011, 01:16:36 PM »
I'd trust the F&T more.
I know about audiocap.

I'm using a 350-0-350 hammond. I'm going to use a diode rectifier. I've gutted out the GZ34 from my old build in this chassis. is 450V not cutting it close or should I be thinking of a slightly larger margin?

HTH AMPS

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Re: TAD or JJ caps.
« Reply #11 on: August 13, 2011, 01:25:44 PM »
I'd trust the F&T more.
I know about audiocap.

I'm using a 350-0-350 hammond. I'm going to use a diode rectifier. I've gutted out the GZ34 from my old build in this chassis. is 450V not cutting it close or should I be thinking of a slightly larger margin?

with that PT, I'd say even a single 500v doesn't have much margin in there - I'd be looking at running two caps in series to increase the voltage handling, like these... http://www.audiocap.co.uk/ft-a22135025049-220uf-350v-electrolytic-25x49mm-51-p.asp


Elliot

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Re: TAD or JJ caps.
« Reply #12 on: August 14, 2011, 04:33:10 PM »
Have you checked out hificollective.co.uk for high end electrical components?
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hunter

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Re: TAD or JJ caps.
« Reply #13 on: August 14, 2011, 07:58:13 PM »
I think it depends on the amp and context it is in circuitry. But overall F&T are better regarded than JJs or TADs.
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Dmoney

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Re: TAD or JJ caps.
« Reply #14 on: August 14, 2011, 10:20:35 PM »
I know they're better regarded. I prefer F&T, the problem is just choice of capacitance and voltage ratings. Getting hold of certain caps just seems like hard work at the moment.