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Old 10th November 2015, 05:39 PM   #1
sunil is offline sunil  India
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Default Claus Byrith 4-30 - HELP !

Hi,

I plan to attempt this design. In the PS stage there are two components I don't understand.

0.2AF - ?
2AT - Is the the fuse rating ?

A friend is helping build it. He is good with 'Audio' technology and we're designing the build at this stage.

Thanks.
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Old 10th November 2015, 05:41 PM   #2
sunil is offline sunil  India
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Default The published power supply

The power supply.
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File Type: jpg Claus 4-30 - PS.jpg (124.9 KB, 311 views)
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Old 10th November 2015, 06:08 PM   #3
vega65 is offline vega65  Norway
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yes fuses
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Old 10th November 2015, 06:18 PM   #4
GoatGuy is offline GoatGuy  United States
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AF is “amps, fast blow” or fast reaction time
AT is “amps, standard blow”, good for power lines and such.
AS is “amps, slow blow”, having extended over-current surge capacity.

AS is good for motor-startup, for instance. Always way-more current flows while the thing starts to turn over. Then it levels out. You wouldn't want to be blowing fuses every time you nominally start a motor.

GoatGuy
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Old 11th November 2015, 06:45 AM   #5
sunil is offline sunil  India
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Thank you vega65 and GoatGuy.

Any recommendations, modifications, suggestions ?
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Old 11th November 2015, 07:01 AM   #6
vega65 is offline vega65  Norway
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Suggest you build it as pr the manual first , later you can look into mods if you like.
( a ccs below the ecc83 cathodes might be woth trying)
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Old 13th January 2016, 12:25 AM   #7
sunil is offline sunil  India
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Is my reading correct - separate 100v power supply for the negative voltage.
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Old 13th January 2016, 02:51 AM   #8
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Also substitute UF5408 diodes for the 1N5408.
1N5408 have amongst the worst switching noise I've ever observed.
That switching noise will couple back thru' the power tranny into the -ve bias supply and the heater supply.
Similary use UF4007 instead of 1N4007.
Cheers,
Ian
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Old 13th January 2016, 08:36 AM   #9
sunil is offline sunil  India
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Thanks for the tips Gingertube.

So, is that separate -100v supply corrrect ?
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Old 13th January 2016, 11:48 AM   #10
vega65 is offline vega65  Norway
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So, is that separate -100v supply corrrect ?

yes , I can check the value of Rvg1 I used.
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