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part list for JSR-03 at different voltage?

Started by meezger_seep, April 09, 2008, 12:30:20 PM

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meezger_seep

heaveno,

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

Here 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

peranders

#1
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.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

meezger_seep

heaveno Per-Anders,

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

Best wishes

meezger_seep

peranders

/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

meezger_seep

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

peranders

#5
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.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

MacMiniHiFi

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

peranders

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.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff