Index of /Audio/Circuits/Power Supplies - Audio, Amplifiers. etc
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03/06/2014
Still online, we are. The code for this website is getting old, but still works well as far as I've seen. I may update it with new code and new features eventually, one day when I have both free time and focus. Until then, the content is still useful, I'm keeping it online. Comments and donations are welcome, but include your email address if you want a reply.


09/04/2010
Ideas for the future of the site -
Here are some ideas I've been brainstorming. I don't think to much of the site should change, because it has been successful all these years with very little change. still nearly 1000 visitors a day to the site!
  • donations - I think it might be time to make some changes to the donations. I would rather see people get a lifetime membership and not have to worry about an expire date. here's an idea, a smaller recurring payment monthly, or 4 times a year, then maybe offer a second option, donate enough to cover the cost of the server for one month and you'll get a lifetime membership that never expires.
  • automated account creation - the membership process should be automated. I rarely hear a complaint about anything, but I don't think people feel so safe emailing me a username and password to set up an account. I think people may feel more safe dealing with an automated system. make a donation, then type your account into right in to the computer and have it set up on the spot.
  • members only forum - the site doesn't seem to need a full forum, but it could still benefit from a single simple board or mailing list, maybe. still optional, but maybe only available to members. non-members wouldn't be able to post on or see the forum. for those who donate to openly communicate.
You can send me your comments in the form above. I'm not putting any work into these changes without getting feedback from you!
If we have any web developers out there, we'd love your help! come on, my birthday's tomorrow!


12/20/2009
Better forum? -
We are currently using vbulletin, but maybe there's a simpler alternative that would better fit the site. What do you think of this one? http://schematicforums.com/seo/ Please let us know what you think, keep vBulletin, or switch to SEO. Comment box is below.


09/29/2009
ideas or comments?
please send us your comments or suggestions or any ideas you might have for the site. this is the easiest way for you to let us know what you think. just type in the box above and send.

Thank you, everyone who has helped support the site over the years. you've done your part, now help me do my part to improve the site with your input.




11/25/2009
tips to download -
right click on the file you want and save target as/save link as. this will help prevent the system from double counting the bandwidth.
The bandwidth reset time is now set to 20 hours instead of a week. We hope this helps you get what you need without causing any problems with the site.


05/07/2008
new server -
this week, we've moved the website to a bigger faster server. we have doubled the weekly download limit to 20mb and are now allowing hot-linking, so more people can get the documents they're looking for. this new server is still relatively low cost, but is a bit more to pay for each month then the last server. we still need your donations to help with this. thank you all who have supported the site and community!!!


01/24/2008
upload files - upload.schematicsforfree.com If you have files you'd like to add to the site, we'd love to add them. Please don't upload anything illegal, harmful, or copyrighted. We will do our best to screen the files and put them online.


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Last Accessed Size  File
12-11-18 10318  +-4.5v-from-9v.gif
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12-12-18 1005646  100Vin Forward Converter Controller.mht
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12-12-18 1903454  Audio Amplifier Power Supply Design snaa057b.pdf
12-12-18 142020  Audio Research D-115 MK-II Power Supply.jpg
12-12-18 1403436  Audio amplifier power supply design - Part 1 Power supply types & transformer considerations EE Times.mht
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12-12-18 190319  Control the Voltage of a Remote Load Over Any Length Copper Wire.pdf
12-11-18 216987  Demand Switched Power Supply for Amplifiers.pdf
12-12-18 1729371  Designing Voltage References Part 1.mht
12-12-18 1653929  Designing Voltage References Part 2.mht
12-12-18 61440  Effects of Power Supply Regulation in Audio Power Amplifiers.pdf
12-12-18 355188  External Power Supplies for Pro Audio.pdf
12-12-18 772938  Hypex SMPS180 Info Sheet.pdf
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12-12-18 93131  Hypex UCD700 Power Supply.pdf
12-12-18 2614828  IC Design of Switching Power Stages for Audio Power Amplification.pdf
12-12-18 55868  Inrush Current Limiter With Mains Operated Timer.pdf
12-12-18 123904  Intro to Power Supplies.pdf
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12-12-18 11880  Low Noise Audio Power Supply Circuit.pdf
12-12-18 5570308  Neve 33604.pdf
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12-12-18 13211912  PI Expert Power Supply Design Software Ver 4.0.4.exe
12-12-18 10766  Power Allowance Calculator.xlsx
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12-12-18 15894  Power_Supply_Balanced_Microphone_Preamplifier_Circuit_Diagram.jpg
12-12-18 419227  Powering the Signal Path.pdf
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12-12-18 782423  SMPS180 Data Sheet pages 5-6.pdf
12-12-18 556757  Soft-start for power supply - HQEW_net.mht
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12-12-18 149227  Voltage Boost Circuit.pdf
12-12-18 326015  Voltage Multipliers 2.xps
12-12-18 341729  Voltage Multipliers.xps
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12-12-18 574766  spotlight_on_rfi_capacitors.pdf

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