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Old 10th August 2017, 11:21 AM   #781
JPS64 is offline JPS64  Germany
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Mouser 14.08.2017; Farnell ?; Kunisch next week; Don-Audio next week.

Here the beast Im using for the test.

JP
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Old 10th August 2017, 02:30 PM   #782
wayne is offline wayne  United States
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Quote:
Originally Posted by Gyuri View Post
Dear Wayne,
What do you think, it can be used in balanced or bridged mode?
I mean one board for left channel and one for right channel.
If it can be possible, then I send you the money right now for another PCB.
Thank you in advance,
Gyuri
I don't see any reason you couldn't do this just feed each board a balanced signal.
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Old 10th August 2017, 05:55 PM   #783
Gyuri is offline Gyuri  Hungary
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Thanks, Wayne,
I suspected it will works, but it is nice to hear from its designer.
So there isn't any obstacles against it, other than that I need a second PCB.
Can you send me a new invoice, or I just simple send 55$ to you Pay-Pal account?
Regards,
Gyuri
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Old 11th August 2017, 01:11 PM   #784
JPS64 is offline JPS64  Germany
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Could someone measure the primary and secondary DC resistance of the TALEMA PCB toroid transformer?

Ive about 6 ohm for one secondary?

JP
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Old 12th August 2017, 05:09 PM   #785
JPS64 is offline JPS64  Germany
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Saturday soldering.

JP
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Old 14th August 2017, 09:39 PM   #786
kevinr is offline kevinr  United States
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do you install insulating washers between the jfets/voltage regulators and the heat sinks ?
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Old 14th August 2017, 09:55 PM   #787
JPS64 is offline JPS64  Germany
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Regulators are FP type.

Mosfet becomes a condom, ordered for 2 hours.

Have big problems with inrush current: Toroidal death or filter cmc + toroidal blows 2A slow bow fuse!

JP
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Old 14th August 2017, 10:36 PM   #788
wayne is offline wayne  United States
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2 amp slow blow should work fine. I measured my secondaries at 4-6 Ohms depending on transformer VA.
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Old 14th August 2017, 10:53 PM   #789
JPS64 is offline JPS64  Germany
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230 Ohm primary and 6 Ohms secondary with 230V and 15VA.
2A blows! Will check without main filter...

JP
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Old 15th August 2017, 07:00 AM   #790
EUVL is offline EUVL  Europe
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I have 2x 25VA Talema and 0.5A slow blow for my F5-HA.
Never have had a problem.

So something else wrong.


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