Help with Nippon Chemi-con 88D capacitors

[housing]

The attached photo shows a populated regulator PCB (Takashi Kubota's circuit) that I built in the mid 1990s for an unfinished buffer pre-amp DIY project.

Does anybody know anything about the Nippon Chemi-con 88D 5600uf capacitor? I was told that it was a Sprague OEM and the price when I purchased them was terribly high. They have 4 leads, 2 positives and 2 negatives. Due to my ignorance at that time, the leads were soldered through respectively. Should they be soldered as one input positive, one output positive and similarly for the negatives, just like the Jensen 4-pole electrolytic or some Soshin Capacitors?

Thank you in advance for any input or advice!

 

[housing]

Still no reply after a year?

 

[jaycee]

They're probably some kind of T-network capacitor where one set of terminals is to be used for the line supply, and the other for the load.

http://www.dnm.co.uk/capacitors.html

 

[housing]

Thanks, Jaycee. I'll go and have a look at the link.

 

[Krughka]

Hello. I have same, but only named SPRAGUE. Did you find there is possible order spare? I can’t find part number for these capacitors. 40VDC only is everywhere.

 

[RobertS61]

Sprague Series 88D

Levinson Powersupply PLS-226 (for the No.26 & 25) uses them also.

 

[Krughka]

PLS-330 also, and DAC ML.No.35
Question is, there is possible found spare?

 

[tvi]

From memory these were built like a plastic stacked foil capacitor, and had a 4 terminal contraction, I might have a datasheet somewhere.....
They disappeared from the market very quickly.

An externally hosted image should be here but it was not working when we last tested it.

more pics here

 

[tvi]

Pic if link gets broken

 

[RobertS61]

I can´t find any datasheet or substitute.
Just bought a No.26 and now I´m less happy with it....

 

[RobertS61]

Found the datasheet in my old United Chemicon 1992 Catalogue!
"Lowest ESR available, 4 terminal design for minimum ESL."
Will scan the pages tomorrow I´m off to bed...

 

[Krughka]

When I need to repair my ML_No.35 DAC, finally I used Jensen 4 terminal low impedance capacitors, but pin location is not same. Just drilled necessary holes at the board and soldered required wire bridges. Unit is already sold now, but 1 good capacitor still left. No.35 was substituted with No.30 and I'm happy to have this spare.

 

[RobertS61]

Sprague/United Chemicon Type 88D specs

Here are the scans.
If necessary, can´t you replace each with two axials?

 

[Krughka]

You can replace these with any type. Boards have limited space only. Each 2 terminals are internally connected anyway. Question is about final ESR and original sound of unit.
This was my choice: