|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc. |
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
|
![]() |
|
|
Thread Tools | Search this Thread |
|
|
#1 |
|
space charged
diyAudio Member
|
I have a cap I purchached in the late '80's
it has these markings SCR PC2500 25uF +-10% 250V (what looks like a sinewave) 85'C 7.85 I'm wondering if its volts (250V) are AC as I suspect and what would be its rating max. be in a DC voltage. Would like to use it for power supple filtering. Can't seem to find any info on the net. Thanks in advance |
|
|
|
#2 |
|
diyAudio Moderator Emeritus
Join Date: Jan 2003
|
In a nutshell:
25uF is the capacitance. +-10% is the tolerance of the capacity. 250V with the sinewave ~ should be the AC voltage rating. It's a bit odd as normally, one would expect a DC voltage sign. 85°C: meaning it is tested for a certain lifetime a 85°C, i.e. 2000 hours. Roughly, when temperature drops with x°C the lifetime will double. Other will have to fill in the 'x'. 7.85: no idea. Depending on what power supply you want to filter, 25uF is not a lot for say something like pass amps. There, you would think of something between 20000 and 200000uF. /Hugo |
|
|
|
#3 |
|
space charged
diyAudio Member
|
Would be using it as a bypass in an HarmonKardon Citation V.
for the driver stage which was changed to a cascoded diffamp w/ccs running at 400 volts at the plate load. Need to know if this cap is rated for 400v at least. The Solen site only lists PA and PB nolonger the PC!? series of caps. I'll be dropping a line to their sales dept which I would have done to start with if I knew it was a Solen, which I think manufactued the SRC. Thanks much for your reply. ================================================= Depending on what power supply you want to filter, 25uF is not a lot for say something like pass amps. There, you would think of something between 20000 and 200000uF. /Hugo [/B][/QUOTE] |
|
|
|
#4 |
|
diyAudio Moderator Emeritus
Join Date: Jan 2003
|
Good approach.
Unless you are perfectly sure it is rated +400V I would consider buying one. The cost of a small cap is not worth the trouble. /Hugo
|
|
|
|
#5 |
|
Banned
Join Date: Oct 2005
|
7.85 means build in July 1985
|
|
![]() |
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Anyone ever use any Mil-Spec RG-142 ? | Wardsweb | Parts | 12 | 9th March 2011 01:33 PM |
| Pioneer SPEC 2 | lorenzok38 | Solid State | 13 | 14th May 2007 10:17 PM |
| CDM 12.4 spec | billr | Digital Source | 0 | 10th January 2007 07:12 AM |
| Pioneer spec 2 | ostie01 | Solid State | 3 | 3rd July 2006 04:08 AM |
| (RCA) 6SN7 GTC spec? | tomchaoda | Tubes / Valves | 6 | 8th April 2005 05:28 PM |
| New To Site? | Need Help? |