<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Maybe I'm a newb, but I don't agree about "more than likely add your own models". There's a lot of useful stuff you can do in LTspice without going near making your own models.<div class=""><br class=""></div><div class="">Perhaps we're just working towards different objectives? Mostly I use it for testing ideas instead of breadboarding, generating frequency responses for networks that would be a pain to work out manually, checking filter responses, that sort of stuff.</div><div class=""><br class=""></div><div class="">I definitely don't think it's going to give me a perfect answer - the first time I got the ideal op-amp model to spin out to a 15KV output voltage firmly dissuaded me of that, and that's surprisingly easy to do. The concept of "op-amps with no supply rails" is pretty weird, if you're coming from a more practical background - and since it clearly leads to behaviour which is far from realistic, I did wonder a bit why they included them at all. Now I'm better at it, I know when I can use the basic models because it doesn't matter and when I need something that actually has a rail limit. So yes, I totally agree that you need some understanding of what the thing is doing and what you're looking at - but 15KV output is a give-away to *anyone*, right, newb or not?!?</div><div class=""><div class=""><br class="Apple-interchange-newline">
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<div><br class=""><blockquote type="cite" class=""><div class="">On 16 May 2024, at 19:58, Jay Schwichtenberg via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" class="">synth-diy@synth-diy.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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<div class=""><p class="">I wouldn't recommend noobs using simulation without them having
some understanding of it. Main reason without knowing how it works
they assume that a simulation is going to give you the perfect
answer or close to it.<br class="">
</p><p class="">To get good simulations you really need to know what you are
doing and more than likely make your own models. A lot of the
models for components are simple and don't go into the details of
the components. So that can make a big difference in the
simulation.</p><p class="">There are things like noise, power supply ripple, transmission
lines, PCB layout ... that you have to manually add to get really
good simulations that they have no idea how to do.</p><p class="">Jay S.</p><p class=""><br class="">
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<div class="moz-cite-prefix">On 5/16/2024 11:21 AM, Paulo
Constantino via Synth-diy wrote:<br class="">
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<blockquote type="cite" cite="mid:CAFBByKV3p5KD+AxFvd7X2jgAOA1eoNvOrVRCXTQM=QJhS9PQ0g@mail.gmail.com" class="">
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<div class="gmail_default" style="font-family:monospace,monospace;font-size:small;color:#0b5394">What
about the Falstad simulator? It's the best for quick and dirty
sims!!!!!!!</div>
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<div dir="ltr" class="gmail_attr">On Thu, May 16, 2024 at
7:11 PM Chris McDowell via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" moz-do-not-send="true" class="moz-txt-link-freetext">synth-diy@synth-diy.org</a>>
wrote:<br class="">
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<div dir="auto" class="">Simulation, yeah! I learn a ton from popping
stuff into LTSpice and try out anything new or novel there
first. <br id="m_4732428870818493596lineBreakAtBeginningOfSignature" class="">
<div dir="ltr" class="">Cheers,
<div class="">Chris </div>
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<blockquote type="cite" class="">On May 16, 2024, at 8:21 AM, ben
gebhardt via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">synth-diy@synth-diy.org</a>>
wrote:<br class="">
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<div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px" class="">
<div dir="ltr" class="">Not sure if mentioned already, but I
learn alot by simulating circuits and then doing
time and frequency domain analysis. </div>
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<blockquote type="cite" cite="mid:CAFBByKV3p5KD+AxFvd7X2jgAOA1eoNvOrVRCXTQM=QJhS9PQ0g@mail.gmail.com" class="">
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