[sdiy] Electronics Workbench

harry harrybissell at prodigy.net
Sun Mar 4 00:02:07 CET 2001


Re: Current Mirrors don't work ?

What sort... can you send an example?  I've made up some 3080 models which
are basically current mirrors (yes?) and they work fine.

H^) harry

Grant Richter wrote:

> I used Electronics Workbench extensively in the design of the Wiard. It is
> very good for testing sub-circuit section to tweek resistor values and the
> like. I even modeled a complete Buchla 258 oscillator with it, and it
> oscillated! You can model the audio path with op-amps and tweek the
> bandwidth using the Bode plotter. I have found it an extremely useful tool
> and it saves a lot of tedious calculation.
>
> Although it can be frustrating to get a simulation to run. And current
> mirrors don't seem to work?
>
> > From: "danielle o'hallisey" <far at pshift.com>
> > Reply-To: owner-synth-diy at node12b53.a2000.nl
> > Date: Sat, 3 Mar 2001 10:51:37 -0500
> > To: "Synth-DIY" <synth-diy at node12b53.a2000.nl>
> > Subject: Re: [sdiy] Electronics Workbench
> >
> > Okay, I'll admit that I haven't sussed out the cut-and-paste thing. Instead,
> > I do a "save-as" then strip out the stuff I don't want to re-use, just like
> > you do. This presupposes that I have a fixed concept in mind when I start
> > playing, though...usually don't.
> > This has gotten me thinking; it's been a long time since I even used the
> > program, and am rusty enough with it that I need to review it before making
> > any major pronouncements. But I also got the upgrade offer recently, and am
> > thinking seriously about making the jump.
> >
> > Since I recenly bought a Mac laptop (very used) and since we're discussing a
> > sort of modular approach to prototyping, I'm wondering if anyone has
> > experience with Opcode's programming language, Max? Or (for that matter)
> > Turbosynth? These both seem like great ways to quickly patch together new
> > ideas and hear how they might work. I don't think either is made anymore,
> > but could be wrong.
> >
> > Of course, the ideal way would be to get on with building my own modular.
> > Lost my modules in a flood a couple of years ago, along with alot of
> > original guitar effects. Am just now putting together a nice workshop in the
> > new home...time to roll up my sleeves, I guess!
> >
> >
> > ----- Original Message -----
> > From: "harry" <harrybissell at prodigy.net>
> > To: "danielle o'hallisey" <far at pshift.com>
> > Sent: Thursday, March 01, 2001 11:22 PM
> > Subject: Re: [sdiy] Electronics Workbench
> >
> >
> >> Eh funny about that. I have problems sometimes when I try to import a
> > subcircuit
> >>
> >> from one design to another. Sometimes they get trashed, so usually I "save
> > as"
> >> the file with the subcircuit, then edit that one.
> >>
> >> Had fun today modelling a communication system. I had to prove to my boss
> >> that the wire we use was both a wire and a transmission line at the same
> > time.
> >> So I used AC voltage sources, summed
> >>
> >> 1(F) + 1/3 (3F) +1/5 (5F) +1/7 (7F) which is the fourier recipe for a
> > square
> >> wave.
> >> Everybody stood around watching like "WOW" how does he know these off the
> >> top of his head. I didn't tell them its a simple harmonic series that all
> >> synth-diyers
> >> probably learned the second week !!!   So the boss says when I get into
> > the MHz
> >> range... OK I guess you have a point.... LOL
> >>
> >> Hey if you have tips or questions drop me a line.  I'd like to know how or
> > why
> >> EWB does not handle mutual coupling of inductors. I know the new MultiSim
> >> will....
> >
> >
> >
> >




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