Sjöström Audio DIY forum

Projects => Power supplies => Topic started by: meezger_seep on April 09, 2008, 12:30:20 PM

Title: part list for JSR-03 at different voltage?
Post by: meezger_seep on April 09, 2008, 12:30:20 PM
heaveno,

Has anyone of you a part list for the JSR-03 at 9V, 5V and 3.3V?

Here (http://bergrans.despinnerij.nl/index.php?content=power-supply) I found a part list for a 9V and a 5V version.
Is it really necessary to change almost all resistors? I thought I would be sufficient to change DZ1, R8/9 and the reference voltage?

Is there anyone who made a working 3.3V version?

Many thanks in andvance

Best wishes

meezger_seep
Title: Re: part list for JSR-03 at different voltage?
Post by: peranders on April 09, 2008, 02:04:24 PM
My test version gave 3.1 volts (2 x Red LED) out. I didn't trim the voltage but you don't have to change so much. The difference between the 5 volt and the 3.3 volt is the gain and change of voltage reference. A red led can be used, at least for test purposes.

I have a partslist for 9, 12, 18 volts.
Title: Re: part list for JSR-03 at different voltage?
Post by: meezger_seep on April 09, 2008, 08:26:02 PM
heaveno Per-Anders,

Thanks for the answer.
What do I have to do to receive the 9V part list?

Best wishes

meezger_seep
Title: Re: part list for JSR-03 at different voltage?
Post by: peranders on April 10, 2008, 08:33:16 AM
See the download section.
Title: Re: part list for JSR-03 at different voltage?
Post by: meezger_seep on April 11, 2008, 10:06:15 AM
heaveno Per-Anders,

Don't you think it's a bit extreme to charge 5US$ for a partlist and schematics of which you don't own the copyright?

I thought it's "Stingy Scot" and not "Stingy Swede" :-D

Best wishes

meezger_seep
Title: Re: part list for JSR-03 at different voltage?
Post by: peranders on April 11, 2008, 01:17:27 PM
The fee is for accessing everything, not particulary expensive. Yes, I do have the copyright of the artwork since I have done it. You can't have copyright on a design or an idea though.
Title: Re: part list for JSR-03 at different voltage?
Post by: MacMiniHiFi on March 18, 2009, 04:52:20 PM
P-A,
Where in the download section do I find the parts list for 9V, 12V and 18V JSR03 that you refer to in a previous post (filename?). Will the same resistor values be used on the JSR05 boards that got from you?
Thanks,
Nicolai
Title: Re: part list for JSR-03 at different voltage?
Post by: peranders on March 19, 2009, 03:49:02 PM
The BOM is updated but if you miss some voltage (and can't calculate by yourself), drop me a message and I can do it for you.

I will update the BOM further but I can't promise when.