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Old 24th April 2019, 05:04 AM   #41
emyeuoi is offline emyeuoi  Italy
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Interest for XEN Headphone  Amplifier Motherboard
Just back home from a business trip and found the board at home.

Really well done as usual

Thanks and Regards,
Enrico
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Old 24th April 2019, 05:29 AM   #42
EUVL is offline EUVL  Europe
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Document sent.


Patrick
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Old 25th April 2019, 04:06 PM   #43
arnd13 is offline arnd13  Germany
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Board just arrived. Looks great.

THX Patrick!
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Old 25th April 2019, 07:27 PM   #44
EUVL is offline EUVL  Europe
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If you (all) wish to receive the documentation, you need to send me your email address.
For example by PM.


Patrick
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Old 26th April 2019, 05:37 PM   #45
drpro is offline drpro  United States
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Interest for XEN Headphone  Amplifier Motherboard
Board arrived, looks great.
Tnx
David
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I must build. Pass F4s, F6, M2, BA-3 preamp, MoFo, ImPasse preamp, Whammy headamp, Aksa's Lender preamp, Salas DCG3 headphone/preamp, XRK971 PCA & DCA headamp Bruno Putzey's balanced preamp, Doug Self preamp, Pete Millet Korg headamp.
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Old 26th April 2019, 09:17 PM   #46
EUVL is offline EUVL  Europe
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Document sent.


Patrick
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Old 26th April 2019, 09:54 PM   #47
drpro is offline drpro  United States
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Interest for XEN Headphone  Amplifier Motherboard
Received docs. One question, there are 78xx, 79xx, 78lxx and 79lxx ICs called for. I am guessing a linear regulator either 7815 or 7824 and 7915 or 7924 depending on desired output. Brand not critical.
Tnx
David
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I must build. Pass F4s, F6, M2, BA-3 preamp, MoFo, ImPasse preamp, Whammy headamp, Aksa's Lender preamp, Salas DCG3 headphone/preamp, XRK971 PCA & DCA headamp Bruno Putzey's balanced preamp, Doug Self preamp, Pete Millet Korg headamp.
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Old 26th April 2019, 09:58 PM   #48
drpro is offline drpro  United States
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Interest for XEN Headphone  Amplifier Motherboard
One more, regarding best fuse value. I have the two SHPP boards to go with the mother board.
Size of fuse?
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I must build. Pass F4s, F6, M2, BA-3 preamp, MoFo, ImPasse preamp, Whammy headamp, Aksa's Lender preamp, Salas DCG3 headphone/preamp, XRK971 PCA & DCA headamp Bruno Putzey's balanced preamp, Doug Self preamp, Pete Millet Korg headamp.
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Old 27th April 2019, 04:33 AM   #49
EUVL is offline EUVL  Europe
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Join Date: Oct 2003
As in any of our heapdone amp projects, you can use any regulators for the main amp which are 78xx / 79xx pin-compatible (TO220).
Almost all of our projects are supplied with discrete regulators of different sorts.
Voltage to suit that particular amp.

The 78Lxx / 79Lxx are for the SHPP.
We recommend same voltage as the main amp.

Fuse depends on power consumption.
Suppose you use a +/-24V UTHAiM with 22Vrms Talema.
And let's say you want to bias at 180mA.
And mains is 115Vac
Total power = 2 x 2 x 22 x 1.414 x0.18 = 23W.
Mains current = 0.2A.

I would then use a fuse of say 0.4A slow blow.


Patrick
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Old 27th April 2019, 11:46 AM   #50
BEYoung is offline BEYoung  United States
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Default Boards arrived.

Beautiful boards. Thank you!
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