Capacitor K73P-4 250V 6uF USSR - diyAudio
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Old 2nd July 2013, 11:27 PM   #1
hunsoop is offline hunsoop  United States
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Default Capacitor K73P-4 250V 6uF USSR

Has anyone tired "Capacitor K73P-4 250V 6uF USSR"? just bought it for my crossover project at ebay Capacitor K73P 4 250V 6uF USSR Lot of 4 Pcs | eBay

but after i bought this cap, I found the review from Russian PIO caps. Should I use them?


K31, SSG, SGM, KSO - mica, some types with silver - good
K40 - PIO - very good
MBGxx, KBG-xx, OMBG - PIO
K42, MBM, BM-x - paper (w/o oil ??)
K70, K71 - Polystyren ("polystirol") - good
K72, FT - teflon ("ftoroplast") - THE BEST
K73 - Polythelene Teraphthalate film ("lavsan") - poor
K75 - combined Paper+Film (Polythelene Teraphthalate??, with or w/o oil??)
K76 - Laquer film
K78 - Polypropilen

it says "K73 - Polythelene Teraphthalate film ("lavsan") - poor"

Should I buy another cap?

Last edited by hunsoop; 3rd July 2013 at 12:53 AM.
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Old 3rd July 2013, 12:54 AM   #2
hunsoop is offline hunsoop  United States
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can anyone recommend a good (6uf) capacitor for crossover?
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Old 12th July 2013, 12:24 AM   #3
piano3 is offline piano3  United Kingdom
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Since you have these caps why don't you try them-I think you will find them very good. You are not going to find 6uF in teflon too easily! I (and many others) have used K73-16 which are tremendously good and these should be similarly so. You could also try Russian KBG paper in oil, which are also easily available in 6uF and inexpensive.
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Old 12th July 2013, 01:38 PM   #4
hunsoop is offline hunsoop  United States
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piano3

thank you for your comment! I will find out and let you know soon.
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Old 2nd December 2013, 09:05 PM   #5
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K73-16 are nice caps.
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Old 9th December 2013, 06:51 PM   #6
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K73 - also know as Polyester film
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