Re: [LAU] Audio interface for newbies ?

On Fri, 26 Aug 2016 20:08:54 -0700 (PDT), Len Ovens wrote: Again guessing. This card is not an amplifier that requires a big reliable power supply, neither it's comparable to a CRT, that has got a high power consumption. I do not own this card, so I ask questions to perhaps provide more than just guessing. I didn't find a circuit layout, but already tried to read on a photo what is printed on the large TO-220 package component. I didn't find a photo where I could read what's printed on it, but while searching such a photo, I found this https://offog.org/notes/delta-1010lt-repair/ So the two capacitors close to the large TO-220 package component are reservoir capacitors. Note, my PCI Envy24 cards have a voltage regulator were the delta seems to have one, too. At the further end of the large TO-220 package component, there are two small capacitors and something that looks like a miniature edition of a TO-220 package. On my cards it's a 1117 voltage regulator. However, assuming that the provided power by the computer's power supply should be too fluctuating, to feat the stabilisation of the delta, I would suspect more dramatic effects. If the stabilisation should be the reason for the issue, then I would expect broken capacitors on the audio card. Regards, Ralf