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Duncan, thanks for taking a look.? No rush from my perspective - just wanted to confirm there was an inconsistency - it's an esoteric situation, which is likely why this may be the first awareness of

Hi Tim, I've duplicated your circuit using the values listed in your message, and I can confirm that something is badly broken. Looking a I(T1) the positive and negative excursions should be the same

Hi Tim, Thanks for letting me know. I'll try and duplicate your circuit this evening and see if I can find any clues as to what's happening. More news later... Regards, Duncan

Duncan, seems you're busy with V3, but perhaps you have time to quickly check an inconsistent response when using a valve based voltage doubler.? I have a setup with 330V 21R secondary supplying a 2x

Hi Duncan, I'm so glad I found this. I used the original PSUD almost 20 years ago now and it helped so much. After this long I'm building valve amps again, but the computer I had the original

Agreed as well! Thank you Duncan! "Conan, what is best in life?" "To crush your code. To see it working before you. And to hear the adorations of your users!"

+1 Verzonden: maandag 15 januari 2024 16:51 Aan: duncanampspsud@groups.io Onderwerp: Re: [duncanampspsud] Thank you! I wholeheartedly agree. The SW program is a wonderful tool and it's

I wholeheartedly agree. The SW program is a wonderful tool and it's especially nice that Duncan continues to improve it.

I hope this message isn't a bother to everyone, I just wanted to say thanks to Duncan for making this software available. I have been playing around with it for a bit, and and it's great! Thank you

Hi, you indicated issues with downloading the software on 21st March, however I did not hear back to be able to assist with the issue. The original thread is here -->

Hi i try to dowmloads psu2 sofware but it dont works.help thanks?

Hi Dom, Thanks for the offer. I've paused the PSUD3 Beta at the moment, there has been some really useful feedback on it which I will incorporate over the Christmas break. There's a message with a

Hi Duncan i am volunteer to test rev3, as i was for rev2 73 & thanks forthis very nice soft 73s? Dom

Thanks for the quick reply Duncan. No problem. I just wanted to make sure I wasn’t missing something. It’s a great tool - thank you ?? John

Just a word of thanks, Duncan for making such a useful piece of software available gratis. I've used it as necessary for many years; it beats faffing around finding suitable models for Spice, and for

Hi John, This is a PSUD2 problem rather than a mismatch in setups. Kirchoffs first law is quite clear, the currents going into a node should equal the currents coming out. To speed up and simplify

Hi. I've been poking around trying to explain a 10volt difference between PSUD2 and LTSpice results for an EZ81 based power supply. It's not a big deal (the amp's been working for years) - I'm just

I would say that the 1mA or so of current through the balancing resistors is insignificant. You could use a 100uF 500v capacitor instead, but it would probably cost more than the two 250v ones. The

Hi Paul, I believe you asked about the voltage divider resistors in parallel with the series resistors. While it is a small current going through them it still presents a load on the supply. I would

Hi Paul, Yes, just use half the value for the capacitor and you'll have the right answer. Any ESR (Equivalent Series Resistance) in the cap should be doubled. Regards, Duncan