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Old 19th September 2013, 12:54 AM   #1
limono is offline limono  United States
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Default Black Gates

I have some old stock :
0.22uF /50V PK series -$2 each
0.33uF/50V PK series--$2 each
4.7uF/100V STD series -$12 each
33uF/160V STD (300B SE cathode bypass) -$27 each
I will send worldwide , paypal , money order accepted .
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Old 19th September 2013, 08:52 AM   #2
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33uF/160V pictured H series, I never seen this series for BG, are you sure isn't a fake?
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Old 19th September 2013, 01:00 PM   #3
limono is offline limono  United States
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I bought this lot from defunct audio business in California. They said they purchased stock directly from Jelmax in 2006. I think I can be reasonably sure that they are original.
The 4.7/100V is rated at 85 C while the 33/160V is rated at 105 C , maybe that's where suffix H comes in play. I have many PK type 0.22uF and 0.33uF/50v I guess they should be fine for PSU bypasses and coupling positions but only a few 33uF/160V and 4.7/100V.
Thanks, L

Last edited by limono; 19th September 2013 at 01:21 PM.
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Old 19th September 2013, 01:04 PM   #4
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Thanks for answer and good luck with the sale.
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Old 19th September 2013, 07:43 PM   #5
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AFAIK H series never existed. They also look suspicious (only the 33/160 H types). Those are fakes I would say.
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Old 19th September 2013, 09:48 PM   #6
limono is offline limono  United States
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I did not get it as an H series but standard series . According to Sonic Craft which sells them at $35 each the dimension of 33uF/160V is 20mm x 12.5 mm. These capacitors measure exactly the same . I checked them on simple RLC meter and on 400uF range 10 capacitors measured between 31.1uF to 31.5uF. . The ESR measured betwen 0.32 and 0.34 on all 10 . The last picture is from the bottom 4.7uF/100V , 10uF/250V and 33uF/160V. All of them came in the same lot. Also these are USA sourced caps.
It know it doesn't have to mean anything since the only fake caps I bought were 220uF/500V Cerafines and I bought them guess where ? -from Germany !
Greetings , L
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Old 19th September 2013, 10:05 PM   #7
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It says H on the sleeve. They are 33 F caps but not BG's IMO. Will ask a friend who was BG importer here.

Are the wires ferro or non ferro (i.e. do they stick to a magnet) ?
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Old 20th September 2013, 12:01 AM   #8
Pocoyo is offline Pocoyo  Indonesia
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Quote:
Originally Posted by jean-paul View Post
It says H on the sleeve. They are 33 F caps but not BG's IMO. Will ask a friend who was BG importer here.

Are the wires ferro or non ferro (i.e. do they stick to a magnet) ?
hi jean paul, just a short question

in indonesia now available bg wkz with S code
they said this for japan market, is this real or fake ?
thanks JP
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Old 20th September 2013, 12:25 AM   #9
limono is offline limono  United States
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Hmm maybe you're right. These are the only ones to have ferro wires. Still it would be strange that forgers would go to the extent of getting the size , value and print pretty much right just to screw so badly adding a series suffix it never existed. Maybe I should open up one ?
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Old 20th September 2013, 12:55 PM   #10
limono is offline limono  United States
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Since I'm not a cap expert and over they years bought only a handful of Black Gates.I have an offer to make. I bought those caps in good faith from supposedly reliable source in USA . I will offer those suspect 2x 33uF/160V free shipping included to the person who will confirm their credentials and post credible opinion here. The condition is if they are Black Gates you can keep them ,if not you will be obligated to send them back
Thanks ,
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