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DC on the mains
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Graham Slee View Drop Down
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Points: 16298 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 29 Jan 2022 at 12:29pm
I am following attentively.

So I guess that's three filter sections because of the six capacitors, but I'm not sure what the extra four diodes are for.

Following the circuit diagram which I assume cannot really differ much from all the others, it is a DC "passer" which drops a total of 6 diode drops in both positive and negative directions.

The AC voltage drop would be exactly the same but for the bypass capacitors.

By the way, figure 2 from Rod's site shows exactly the behaviour I described earlier, and can illustrate photographically on my 'scope if I have the spare time.

It is interesting to see Rod's figure 4 - I shall have to mock that up in the reality of the real world and also photograph it.

As Rod says, the plots are almost identical, but I would hazard a guess that the capacitors are adding a teeny weeny bit of phase lag.

I will be interested in your subjective observations.
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CageyH View Drop Down
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Points: 1678 		Post Options Post Options   Thanks (1) Thanks(1)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 29 Jan 2022 at 1:57pm
https://sjostromaudio.com/pages/index.php/hifi-projects/187-dct03-the-dc-trap-high-end-style-heavy-duty

Detail of the DC blocker is available in the link above.


Edited by CageyH - 30 Jan 2022 at 10:05am
Kevin
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CageyH View Drop Down
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Points: 1678 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 29 Jan 2022 at 1:59pm
The schematic is above.
The designer references the same text that you linked to earlier.
I went for this one based on the feedback on the DIY Audio forum.

I am sure it won't be much different from the one I have currently fitted externally.


Edited by CageyH - 29 Jan 2022 at 1:59pm
Kevin
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Fatmangolf View Drop Down
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Points: 8998 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 29 Jan 2022 at 5:12pm
You have tempted me Kevin. I shall await your findings with interest.
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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CageyH View Drop Down
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Points: 1678 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 29 Jan 2022 at 7:51pm
Don't forget I am (hopefully) putting this inside my amplifier, so no case is included in the cost.
Kevin
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Fatmangolf View Drop Down
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Points: 8998 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 29 Jan 2022 at 9:01pm
That is fine with me as I am not averse to lifting the lid to carefully retrofit parts.
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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Graham Slee View Drop Down
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Points: 16298 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 29 Jan 2022 at 9:10pm
Originally posted by CageyH CageyH wrote:

The schematic is above.


You did get his written permission? I wouldn't want him to come after the website's owner (me).
That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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