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I spoke too soon.? Still not getting consistent THD results.? The latest zipped files (thd_debug.zip) show that changing .param fft_cycles=67 brought back the 'thd=0.000000% line again even though I

Yes, right!. I need it to arrive 0V on both output +/- Right. the output max is around 30V > > > >

Sorry.? Just uploaded LG_single.asy.? If missing, it could be shorted out in the schematic.? Anyway, I think Andy is correct in that I was asking .FOUR to perform exactly 61 cycles and I suspect

For what its worth they probably won't behave _exactly_ the same in a real design. There's generally a preference for NPN transistors as power elements, meaning that positive side regulators are based

https://www.st.com/content/st_com/en.html -- This email has been checked for viruses by AVG antivirus software. www.avg.com

Which country are you in? I know of a British supply of the power transistor at a very low price, comparatively, but not for export.

Hi Ivan, I've uploaded a zip file - some-zener-models.zip - with 2 files in it. The Cordell text file I might have downloaded from here, can't remember. The 1N5241B is in both files. There may be some

OK Tony, thaks for all.

Sorry folks, the example project is here. Sent: Monday, February 03, 2025 at 11:18 PM From: "eewiz via groups.io" <eewiz@...> To: [email protected] Subject: Re: [LTspice] Creating My

Hello all: Ivan, I have uploaded an example project that details how to create a single symbol that permits selection of multiple sub-circuit models. Many thanks to Andy I for his library management

There are actually some "tricks" going on, when a subcircuit (or lower-level schematic) has a "ground" net that comes out on a .subckt pin.? Some years ago I spent some time documenting this, but did

Your upload seems to be missing the LM337 symbol.? And its model too. And it is not a Dual PSU.? Did you upload the wrong thing? IMO, it is dangerous defining a new model for the BZX84B33VLY.?

It looks to me like TLV431AS, making it another member or derivative of the TL431 family.? Connected this way, it would be 1.24 V. I don't quite follow.? The zeners on the output are 33 V (+/- 0.7),

FYI - I made some changes to one of my previous replies, which mostly do not affect this discussion, but I want to be more correct about them. In most common usage, -55 to +100 C would be somewhere

I don't remember if I replied to this already: The key was to strip off the "A" or "B" suffix. Searching for "1N5226B" fails. Searching for "1N5226" succeeds. The 1N5226 is the more common diode, for

Not even spaces?? Wow. Often a text file displays incorrectly in Notepad because it appears to be missing linefeeds, turning it into one run-on sentence or long paragraph, but the spaces between

I think that is the name of a company.? I wonder if John meant STM (STMicroelectronics)?? (There is an STI that makes thermocouples.) *CORRECTION:* The company name John refers to is ST, also known

I think it is critical to omit the suffix letters when searching.? I do not claim there is no difference between a 1N4572 and a 1N4572A, but sometimes the only difference is either (1) it is in a

I kinda already responded to this just now but, just to reiterate, I'm not putting all my different model types in one user file in a "working environment" situation. As I mentioned in my last reply

I'm happy to report that I haven't had any issues after creating a user.bjt and user.dio file that are placed in the Documents\LTSpice folder so now, when I choose to "pick new diode" or "pick new