Guest Zzzz... Posted March 18, 2004 Report Share Posted March 18, 2004 Hi...For those who have some electronic -background i have a question.Could someone verify the lay-out given here (made in eagle), is allright (although it's only one)....?That's all ...Thanks in advance....Zzzz....just double checking this....in this way Quote Link to comment Share on other sites More sharing options...
TK. Posted March 18, 2004 Report Share Posted March 18, 2004 And who checks the AOUT schematic???Just yesterday I found another bug (Ry/R_p have to be connected to E-!)New version can be found here:http://www.ucapps.de/mbhp/mbhp_aout.pdfAnd there is now also a small extension for a balanced CV output (e.g. -5..5V)http://www.ucapps.de/mbhp/mbhp_aout_balanced_cv.pdfBest Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Guest Zzzz... Posted March 18, 2004 Report Share Posted March 18, 2004 Hi Thorsten...I am not getting, what you mean by saying:(Ry/R_p have to be connected to E-!)This is as normally to my lack of knowledge in electronics, but could you simply the sentence by the board I've made. There something with the resistors connected to the LM324, but what is the difference between the real old .pdf and the newest .pdf?By the way is my board totally crappy or do I only have the make some small adjustments?Thanks in advance...Erik...Probalby no one is checking... ??? :'( Quote Link to comment Share on other sites More sharing options...
arumblack Posted March 18, 2004 Report Share Posted March 18, 2004 In the lower left, the 10k resistor does not appear to be connected to anything,it should coonect to 5v at one end, and near the 10nf cap connected to pin6 of the max 525. it looks like it was placed a little too far left.I didn't notice anything else, but that is not to say for sure it isn't there.Good luck, and please share this file when it is tested ;)AB Quote Link to comment Share on other sites More sharing options...
arumblack Posted March 18, 2004 Report Share Posted March 18, 2004 Thorsten, what is balanced cv for? I don't think I've heard of this before? Quote Link to comment Share on other sites More sharing options...
chriss Posted March 18, 2004 Report Share Posted March 18, 2004 I would go for multiturn trimmer´s (spectrol), just in case you need very accurate cv´s.chriss Quote Link to comment Share on other sites More sharing options...
TK. Posted March 18, 2004 Report Share Posted March 18, 2004 Chriss' hint is very important - in my own MBHP_AOUT layout I will take care about multiturn trimmers, because it's too difficult to calibrate the output voltage with a common pot.Balanced outs: thats a new feature especially for synths with -4V/4V inputs (like Kobol). I will add some more words about this extension once I find the time! (currently I'm very busy@work, so - not before end of next week...)This extension isn't required for common analogue synths, so just ignore it if you haven't heart about balanced CVs before.Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
arumblack Posted March 18, 2004 Report Share Posted March 18, 2004 Ok, cool.Thanks TK. Quote Link to comment Share on other sites More sharing options...
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