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Wayne's BA 2018 linestage
Wayne's BA 2018 linestage
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Old 22nd March 2020, 07:13 PM   #1001
6L6 is offline 6L6  United States
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Wayne's BA 2018 linestage
Ah! The photo in the data sheet has "1 2 3" but the drawing has "1 2 C". So yes, C is 3.


Usually the chassis ground is at the PSU, but that might not work with Silent Switcher... need to see your entire wiring diagram.
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Old 22nd March 2020, 07:19 PM   #1002
manniraj is offline manniraj  India
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Originally Posted by 6L6 View Post
Ah! The photo in the data sheet has "1 2 3" but the drawing has "1 2 C". So yes, C is 3.


Usually the chassis ground is at the PSU, but that might not work with Silent Switcher... need to see your entire wiring diagram.
Hmm ok let me put down my wiring with the power amp and preamp in a single chassis and how I did the wiring to showcase if this works. As I think I get lot of hum which seems to be ground loop issue

Thanks
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Old 23rd March 2020, 07:57 AM   #1003
manniraj is offline manniraj  India
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Apart from checking the DC offset being closer to the 0mV on each of the mono boards outputs, what else should I check for the bias any other things on the preamp.

Thanks
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Old 23rd March 2020, 06:36 PM   #1004
manniraj is offline manniraj  India
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Apart from checking the DC offset being closer to the 0mV on each of the mono boards outputs, what else should I check for the bias any other things on the preamp.

Thanks
Any pointers guys, sorry I looked around in the thread but could not find instructions on the PDF document as well.

thanks
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Old 23rd March 2020, 08:28 PM   #1005
6L6 is offline 6L6  United States
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Wayne's BA 2018 linestage
Twist the pot to make the dc offset at the output zero or as close as you can get it. That’s it.
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Old 23rd March 2020, 08:45 PM   #1006
manniraj is offline manniraj  India
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Twist the pot to make the dc offset at the output zero or as close as you can get it. Thatís it.
Thanks Jim
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Old 24th March 2020, 08:45 PM   #1007
manniraj is offline manniraj  India
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The connections that you suggested work beautifully. There was hum initially then I connected one of the output grounds to the chassis and the hum disappeared completely and dead silent even on headphones

Thanks Jim again.
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Old Yesterday, 01:03 PM   #1008
Gaz2613 is offline Gaz2613  United Kingdom
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I was told you guys wanted a PSU for this bad boy! Here you go!
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File Type: jpg 11204356.jpg (77.4 KB, 100 views)
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Old Yesterday, 01:44 PM   #1009
Centurion53 is offline Centurion53  United States
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Is this a commercially available supply or of your own design?
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Old Yesterday, 01:48 PM   #1010
6L6 is offline 6L6  United States
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Wayne's BA 2018 linestage
It’s essentially the WHAMMY PSU section put on it’s own PCB. Looks great!
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