Wanted WTB: 1-3uf 150v wet tantalum

[salomonander]

Looking for these for a client. The most unusual value. Does anyone have any, or knows a source? Thanks!

 

[zamproject]

That's a hard one !

Vishay 135D series... 3uF 150V... non stocked at mouser, 33weeks lead time, 25pces min for almost 2k
If possible I'll look for substitution

Cheers
Zam

 

[salomonander]

I know…. They are from the land of unicorns.
TEDs capacitors stocks a NOS version for 180us a piece

 

[emrr]

What on earth has driven these prices? Time to buy certain old broadcast gear full of them and harvest.

 

[TLRT]

I have 1.7uf or 2.5uf /125V NOS but all tested.

 

[Whoops]

does it really need to be tantalum?

 

[abbey road d enfer]

If possible I'll look for substitution

+1
Current electrolytics are certainly good enough, and space permitting, film caps are even better.
And no, I don't understand the obsession with preserving vintage gear in all its aspects, even flaws or imperfections.
I put that in the same category as vintage guitar collectors who insist on keeping long-dead strings on their instruments (which they almost never play) or vintage car freaks who buy at incredible prices vintage GAS!
IMO.

 

[salomonander]

Thanks guys. The 125v wont do im afraid. Now the client just sent me some pics of the original. Are these even wet tantalum? Or maybe pio or mkl?

 

[salomonander]

Actually the code seems to stand for a standard elko.… say an ebay auction with the same code. B43253 - can anyone confirm?

 

[abbey road d enfer]

Or maybe pio or mkl?

No way... Markings on the body may give some clues.

 

[salomonander]

Nevermind… these are for elam 251s. Didnt know that. And im pretty certain they used wet tantalum? Would a 125v cap work as well?

 

[abbey road d enfer]

Actually the code seems to stand for a standard elko.… say an ebay auction with the same code. B43253 - can anyone confirm?

Actually I can't confirm with 100% certainty, but it looks very much like it. Can you describe the circuit it goes into?

 

[abbey road d enfer]

Nevermind… these are for elam 251s. Didnt know that. And im pretty certain they used wet tantalum? Would a 125v cap work as well?

At the time, a wet tantalum cap was probably the only possible combination of low leakage and compactness. Today, zlectrolytic capacitor technology has improved so much current products rival and better tantalum caps of the era. However, the choice is not vast. You'll probably have to use a 2.2uF/160V, which may not be available in axial form.

 

[salomonander]

Thanks! Im afraid my client does not want to take any chances. He insists on these. Do you know if the 150v is a must in the ELAM? Or would 125v work as well? These are available for a reasonable price.

 

[Newmarket]

Im afraid my client does not want to take any chances. He insists on these.

What is the risk that the client thinks he would be taking ?

 

[abbey road d enfer]

o you know if the 150v is a must in the ELAM? Or would 125v work as well? These are available for a reasonable price.

The voltage there is about 60V in operation, but when powering up the system, the voltage there can reach about 110V for a few seconds.
I wouldn't take the risk of using a NOS 125V cap there.

 

[rock soderstrom]

Actually the code seems to stand for a standard elko.… say an ebay auction with the same code. B43253 - can anyone confirm?

Yep, it looks like a Siemens Elko. It is not a MKL type, they have no Plus markings.

This one is similiar.

https://www.ebay.de/itm/26268159215...JAm6ueKTrO&var=&widget_ver=artemis&media=COPY

 

[Whoops]

Thanks guys. The 125v wont do im afraid. Now the client just sent me some pics of the original. Are these even wet tantalum? Or maybe pio or mkl?

By the photos it Looks to be a standard Axial electrolytic capacitor
you can find good replacements here:

https://www.banzaimusic.com/Nichicon-TVX-2-2uF-200V-DC.html
https://www.banzaimusic.com/Nichicon-TVX-3-3uF-250V-DC.html
https://www.banzaimusic.com/Sprague-Atom-2uF-450V.html

 

[soapfoot]

What is the risk that the client thinks he would be taking ?

My guess is that the client fears the performance deviating from the original in some way due to the improvement in parts quality.

I’m tempted to think that’s silly, but then I remember I usually replace noisy plate load resistors in vintage guitar amps with vintage-spec carbon composition, so I don’t have much room to talk…

 

[Whoops]

My guess is that the client fears the performance deviating from the original in some way due to the improvement in parts quality.

All of us have that "Client" from time to time,
it's my belief that we as the "Expert" should be confident enough to "Educate" our clients also.
Educating them and freeing them from wrong misconceptions and out of context beliefs is really important.
Of course there will always be the "stubborn til dead" one but I've found that most clients will react quite well when you tell them straight and be patient to take your time and explain then why technically their belief was wrong.