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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Gentlemen,Take up your positions!!
In the thread which I started as a result of my experiences using a larger toroid in a source-component power supply (active crossover), "Commuteman" suggested that batteries were the ideal power supply - see:
http://www.audioasylum.com/forums/prophead/messages/8900.html
This thread about transformers generated a lot of input so I would be interested in hearing people's opinion about battery power supplies. My understanding of this issue is as follows;
* Batteries are excellent power supplies for ss source components - viz. the Ron Sutherland "PHD" battery powered Phono Stage. Batteries will provide low noise (no noise??) voltage rails which are hard to obtain using a mains power supply.
* However, it is impractical to use them for tubed source components??
* Incidentally, if you have a mains charger connected to the battery then this must be switched off when using the source component, otherwise noise will get through to the power rails and the "benefit" of using batteries is lost.
* However, batteries are no good for power amps because they do not "keep up with" the power demands imposed by the amplifier. IE. a mains power supply, with its considerable amount of microFarads, can better deliver the fast current pulses which a power amp requires.
What are your thoughts??
Regards,
Andy
This post is made possible by the generous support of people like you and our sponsors:
Topic - Batteries vs. Mains Power Supplies - andyr 19:48:13 06/29/04 (58)
- Re: Batteries vs. Mains Power Supplies - chris_w 16:15:48 07/29/04 (0)
- Re: Batteries vs. Mains Power Supplies - Owen 09:12:53 07/06/04 (5)
- ground? - pburke 10:56:27 07/30/04 (0)
- What is the "knee frequency"?? - andyr 15:46:48 07/09/04 (2)
- Re: What is the "knee frequency"?? - Owen 00:59:14 07/10/04 (1)
- Much obliged, Owen ... I'll go and look at the JR power filters (nt) - andyr 01:36:24 07/10/04 (0)
- Thanks, Owen ... - andyr 13:53:02 07/06/04 (0)
- Re: Batteries vs. Mains Power Supplies - Dan Banquer 07:11:50 06/30/04 (18)
- Thanks, Dan, ... - andyr 14:11:23 06/30/04 (17)
- Re: Thanks, Dan, ... - Dan Banquer 18:09:43 06/30/04 (16)
- Dan, if you read my post carefully, ... - andyr 05:48:48 07/01/04 (15)
- Since I caused this mess.... - Commuteman 13:45:46 07/06/04 (13)
- Re: Since I caused this mess.... - andyr 14:05:37 07/06/04 (12)
- Re: Since I caused this mess.... - Commuteman 16:44:55 07/06/04 (11)
- Re: Since I caused this mess.... - Dan Banquer 05:24:06 07/07/04 (9)
- Any idea what the FR looks like? - Commuteman 08:48:36 07/07/04 (8)
- Re: Any idea what the FR looks like? - Dan Banquer 08:57:22 07/07/04 (7)
- Re: Any idea what the FR looks like? - Steve Eddy 13:33:40 07/07/04 (2)
- Re: Any idea what the FR looks like? - Dan Banquer 13:41:34 07/07/04 (1)
- Re: Any idea what the FR looks like? - Steve Eddy 14:58:28 07/07/04 (0)
- Couldn't find anything on either site. - Commuteman 12:16:03 07/07/04 (2)
- Re: Couldn't find anything on either site. - john curl 16:47:16 07/07/04 (1)
- Will do. nt - Commuteman 10:51:33 07/08/04 (0)
- Thanks nt - Commuteman 10:23:39 07/07/04 (0)
- Thanks, Peter ... also using a " rectifier transformer" - andyr 19:03:44 07/06/04 (0)
- I knew it was a dumb question. nt - Dan Banquer 06:58:38 07/01/04 (0)
- Re: Batteries vs. Mains Power Supplies - Steve Eddy 20:27:32 06/29/04 (31)
- Might also be worth mentioning the AC grounding. - Tony Montana 22:59:17 06/29/04 (30)
- Re: Might also be worth mentioning the AC grounding. - andyr 04:29:54 06/30/04 (15)
- May be this diagram explain it better. - Tony Montana 16:37:21 06/30/04 (14)
- Not quite, Tony ... - andyr 05:59:39 07/01/04 (0)
- Re: May be this diagram explain it better. - Steve Eddy 21:07:04 06/30/04 (12)
- I hope you don't tell that to a "Ham" operator... - Tony Montana 23:05:46 06/30/04 (11)
- Re: I hope you don't tell that to a "Ham" operator... - Steve Eddy 23:57:25 06/30/04 (10)
- I suggest you read this article.... - Tony Montana 16:12:22 07/01/04 (5)
- Re: I suggest you read this article.... - Steve Eddy 19:30:13 07/01/04 (4)
- Steve, I just had a thought! - Tony Montana 15:38:58 07/02/04 (3)
- Re: Steve, I just had a thought! - Steve Eddy 17:08:30 07/02/04 (2)
- Ok, so we established that earth is conductive :) - Tony Montana 22:27:56 07/02/04 (1)
- Re: Ok, so we established that earth is conductive :) - Steve Eddy 23:54:56 07/02/04 (0)
- "earth has a magnetic field (which is diminishing by the way" - GTF 07:42:16 07/01/04 (3)
- Re: "earth has a magnetic field (which is diminishing by the way" - Steve Eddy 09:10:57 07/01/04 (2)
- Re: "earth has a magnetic field (which is diminishing by the way" - FLZapped 08:42:37 07/06/04 (1)
- Damn...there goes my cold fusion experiment..and the neighborhood...FLZ nt. - jneutron 06:35:37 07/07/04 (0)
- Re: Might also be worth mentioning the AC grounding. - Steve Eddy 23:18:27 06/29/04 (13)
- Re: Might also be worth mentioning the AC grounding. - Rod M 20:26:15 07/03/04 (12)
- Re: Might also be worth mentioning the AC grounding. - Steve Eddy 21:37:13 07/03/04 (11)
- Re: Might also be worth mentioning the AC grounding. - Rod M 18:53:57 07/04/04 (10)
- Yup..there is current in the earth, caused by power distribution. - jneutron 06:45:13 07/07/04 (0)
- Re: Might also be worth mentioning the AC grounding. - Steve Eddy 19:47:08 07/04/04 (8)
- I see you'll points concerning added extra ground... - Tony Montana 15:30:31 07/05/04 (7)
- Re: I see you'll points concerning added extra ground... - Steve Eddy 17:07:10 07/05/04 (6)
- Lack of information on the web. - Tony Montana 15:17:25 07/06/04 (5)
- Re: Lack of information on the web. - Steve Eddy 15:59:25 07/06/04 (4)
- Re: Lack of information on the web. - Dan Banquer 07:49:49 07/07/04 (3)
- Re: Lack of information on the web. - Steve Eddy 08:39:14 07/07/04 (2)
- Re: Lack of information on the web. - Dan Banquer 08:48:20 07/07/04 (1)
- Re: Lack of information on the web. - Steve Eddy 09:06:13 07/07/04 (0)
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