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Russian FT2 teflon caps proof you don't need the 600v rated ones.

97.95.43.235
Posted on May 29, 2016 at 21:31:21
Michael Samra
Dealer

Posts: 36118
Location: saginaw michigan
Joined: January 30, 2005


You can see the leakage is zero ua and is non existent at 765vdc..





On this .1uf at 600v k40y I get 75.4ua of leakage at 826vdc. I went higher this cap because of its rating but notice the leakage at the over voltage.






" The FT2 .1uf reads .1030uf at 765vdc.


The reason I made this post was show you that you don't need the physically larger FT3 caps for 400v and 630v applications..The FT2s are the same length but you save diameter size and they look nicer because they fit in more applications because of size.I have been using them in Sherwoods and Allen 75s in place of 630v caps and I have NEVER had one fail now in 7 years of using them and this is why I just bought another 150 of them.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken

 

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Another generous post. Thank you. (nt), posted on May 30, 2016 at 09:19:31
Vinyl Valet
Audiophile

Posts: 1346
Location: Tempe, Arizona
Joined: November 13, 2003
 nt
Open up your mind, in pours the trash. - Meat Puppets, 1987

 

RE: Russian FT2 teflon caps proof you don't need the 600v rated ones., posted on May 30, 2016 at 19:12:38
autospecialty
Manufacturer

Posts: 84
Location: Idaho
Joined: December 15, 2012
 Mike: This is a totally different question ??? Will your Sencore LC 102 read the impedance of a output transformer ?? Thanks Will

 

RE: Russian FT2 teflon caps proof you don't need the 600v rated ones., posted on May 30, 2016 at 19:28:44
Michael Samra
Dealer

Posts: 36118
Location: saginaw michigan
Joined: January 30, 2005
 Will
It will read choke values and it will ring yokes and even switchmode transformers to see if they are good but I don't think it will read impedance.
It is very easy to measure the primary impedance of an OPT trafo just using a variac and an AC voltmeter. I'll do a demonstration in pics explaining each step if you want.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken

 

RE: Russian FT2 teflon caps proof you don't need the 600v rated ones., posted on May 30, 2016 at 19:37:33
autospecialty
Manufacturer

Posts: 84
Location: Idaho
Joined: December 15, 2012
 Mike: Thanks for your quick answer.....I am familiar with that method, but I have about a hundred transformers to check and was looking for the easy way out......Thanks again Will

 

RE: Russian FT2 teflon caps proof you don't need the 600v rated ones., posted on May 31, 2016 at 00:22:20
Michael Samra
Dealer

Posts: 36118
Location: saginaw michigan
Joined: January 30, 2005
 I've never known any other method other than calculating the turns ratio and doing the math.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken

 

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