Gotcha.. thanks. I am sure I will have many more questions soon :)<br>
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JON<br><br><div><span class="gmail_quote">On 6/13/05, <b class="gmail_sendername">harrybissell</b> <<a href="mailto:harrybissell@prodigy.net">harrybissell@prodigy.net</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi Jonathan<br><br>Yes that supply would be fine.<br><br>You can find data sheets via Google for the 7812 (try uA7812, LM7812<br>etc)<br>and the 7912 from manufacturers. Probably everyone has one (National<br>Semi,<br>ST Mircoelectronics, etc)
<br><br>The esteemed Mr. Fritz makes a good point. If the designs rely on the<br>power supply<br>for reference voltages, you will have troubles. IMHO you will have<br>troubles even<br>if you use a good, stable +/-15V supply. The best thing to do is to
<br>hack those designs<br>to eliminate the dependance on the power supply.<br><br>You will notice that designs using the power supply for references will<br>interact. Turn<br>up the resonance on the VCF and watch the VCOs go out of tune. This
<br>SHOULD not<br>happen but it might. If you get screwed with this, drop a line with<br>the schematic<br>and we can advise you on how to improve it.<br><br>A number of the simple 'kits' have this problem. The designers must have
<br>a better<br>supply than I do.... or I'm just too fussy... :^P<br><br>H^) harry<br><br>Jonathan Lutz wrote:<br><br>> Would a dual-output supply like this one (Power-one HBB15-1.5-A) do<br>> the trick?<br>> <a href="http://www.alliedelec.com/Cart/ProductDetail.asp?SKU=218-3006">
http://www.alliedelec.com/Cart/ProductDetail.asp?SKU=218-3006</a><br>><br>> JON<br>> On 6/13/05, Ian Fritz <<a href="mailto:ijfritz@earthlink.net">ijfritz@earthlink.net</a>> wrote:<br>><br>> At 11:41 PM 6/12/05, Peter Grenader wrote:
<br>><br>><br>> >Most *will* work with a lower supply, the question is how<br>> well and how much<br>> >spec hack you're willing to tolerate. Critical adjustments<br>> such as 1v/oct
<br>> >tracking, overall frequency ranges, etc will be<br>> compromised.<br>><br>><br>> Those *may* be compromised. Good designs use local<br>> subregulation for those<br>> critical voltages, so they will often work with different
<br>> supply voltages.<br>><br>><br><br></blockquote></div><br>