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Old 6th November 2012, 10:15 PM   #2681
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No worries there.
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Old 7th November 2012, 02:16 PM   #2682
anilva is offline anilva  India
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Default Can I use Jensen JT-11-FLPCH

The greedy boy that I am, went ahead and bought Jensen JT-11-FLPCH transformers couple of months back along with Semisouth R100As, in anticipation of F6 build. But Papa's circuit that is published says JT-123-FLPCH.

Is there a way I can use the JT-11-FLPCH transformers?

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Old 7th November 2012, 02:16 PM   #2683
generg is offline generg  Germany
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May I ask some question, the Jensen has a DC resistance of about 28 ohm, the Edcor XS4400 nearly 115 Ohm. In parallel the primaries have 14 or 57 Ohm.
So the feedback loop with the Edcor is more open, so I could try to reduce the 100 Ohm to a smaller value?

And is the 18 R concerned when the xformer has other data?

Thanks!
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Old 7th November 2012, 02:22 PM   #2684
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Generg - that's irrelevant

just follow FB route ; node between 110R and 18R is where voltage is all what counts

Rdc of two paralleled primaries is irrelevant
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Old 7th November 2012, 02:23 PM   #2685
Zen Mod is offline Zen Mod  Serbia
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Quote:
Originally Posted by anilva View Post
The greedy boy that I am, went ahead and bought Jensen JT-11-FLPCH transformers couple of months back along with Semisouth R100As, in anticipation of F6 build. But Papa's circuit that is published says JT-123-FLPCH.

Is there a way I can use the JT-11-FLPCH transformers?

Regards
link for us lazy ones , please

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Old 7th November 2012, 03:00 PM   #2686
6speed is offline 6speed  United States
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Quote:
Originally Posted by Zen Mod View Post
link for us lazy ones , please

I was just on the Jensen site I can help out...transformer specs links:

JT-123-FLPCH
JT-11-FLPCH
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Old 7th November 2012, 04:07 PM   #2687
anilva is offline anilva  India
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Quote:
Originally Posted by 6speed View Post
I was just on the Jensen site I can help out...transformer specs links:

JT-123-FLPCH
JT-11-FLPCH
Thanks for putting up the links.
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Old 7th November 2012, 05:12 PM   #2688
Zen Mod is offline Zen Mod  Serbia
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Pa sez that you can use 2 same xformers in F6 , but I don't think that's most convenien , regarding price , in your case

F6 needs 1:1+1 xfrmr

you have 1:1

whatever - buy JT-123-FLPCH (they're luckily less troublesome than Semisouth parts ) , and use JT-11-FLPCH either for input or output duty ...... in something

whatever - it's handy to have some isolation xformers in cousine ...... or house , generally
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Old 7th November 2012, 06:17 PM   #2689
anilva is offline anilva  India
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Quote:
Originally Posted by Zen Mod View Post
Pa sez that you can use 2 same xformers in F6 , but I don't think that's most convenien , regarding price , in your case

F6 needs 1:1+1 xfrmr

you have 1:1

whatever - buy JT-123-FLPCH (they're luckily less troublesome than Semisouth parts ) , and use JT-11-FLPCH either for input or output duty ...... in something

whatever - it's handy to have some isolation xformers in cousine ...... or house , generally
Thanks. I will buy the right model.
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Old 7th November 2012, 09:04 PM   #2690
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