du.facc

Can I add two potentiometers to the "fine tuning"? From what I know, just add the potentiometer in series with the potentiometer in the circuit that already exists, but do not know if this circuit is possible to contain the RV2 and RV3. If possible, which would then potentiometers?

so, back to VA, i´d like to know how many VA is the best for the transformer, or maybe you´d tell me how many you used. Thank´s again

What I meant was that I saw a multimeter in Tompa´s archives which was able for download, but It was in a folder called Redwire, I´ve already sent a MP to it and I got some information. Once I´m posting again, one more question came up to me about my last request. I read about those VA and found out that the energy wire is different for South America, USA and Europe, knowing this, how could I choose my transformer ?Could it be by the VA output? if so how many VA should i choose for a good performance? ( PS: in Brazil it is 110/220v 60Hz)

I was wondering because I saw one of the multimeter in the documents that caught the tompa, but already got some information ... could you tell me please how the VA is essential for the PSU work well? According to his part list, a transformer of 28V / 4.3A, I provide 120.6 VA correct? I read about 45 pages of the topic and saw that will warm the 120VA transformer .. I'm from Brazil and here there is no standard transformer of 28V, if I know the VA will be able to make a relationship volt / amp and find the ideal transformer am I correct?

What about the multimeter? is there a link with a PIC or maybe a link from Redwire? Redwire is pretty good, it gives us tons of information.

a Hi everyone, I´m a electronic engineer student and I need to develop a project for March, it´s a PSU with one criteria, the “way out” has to have more than 1A. I chose it for understanding that this might be a great supply for my next projects. I tried to make the original first but I had some issues with the Proteus software (a friend told me that it does not work properly with the negative power supply) and I´ve been reading some old posts and I noticed that this is exactly what you have eliminated. Which one should I use, Redwire or Audio? I downloaded the Tompa archives and I liked the PSU from Redwire, because it seems to be easier to deal with, but Audio is pretty good too, so now I don’t know which I should try to use. Do you know if there´s a link to Multimeter, that Redwire created. I liked very much, it has everything I need, even temperature, if not, i´d like to make a multimeter with PIC, so I could learn now what I will have to study in college in the future. Both archives from Tompa are in AtMega, is it really good? Thank´s all !