almarg
Responses from almarg
| Running dedicated AC mains .... need advice .... The earth shall not be considered as an effective ground-fault current path.From 2005 NEC 250.4 (A) 5True, but the presence of such a path will do no harm as long as the proper path is also present, at the service entrance (that proper path presen... | |
| AC Power Cord Wire Gauge You can see by the statement you quoted that I am not scientific enough to posit an intelligent response ... On the contrary, I sincerely felt that your entire response was quite intelligent. In that particular part of it, you were simply citing w... | |
| AC Power Cord Wire Gauge Some very smart individuals with electrical engineering backgrounds will make compelling arguments in favor of using the same gauge wire in power cords as that which is in your walls because from an engineering standpoint it makes sense to do so. ... | |
| AC Power Cord Wire Gauge Re question 1: Assuming the house was wired properly, the only constraint for what is connected to a 15 amp branch served by a 15 amp breaker is that the total current drawn by all devices that are plugged into all outlets on that branch, and all ... | |
| Running dedicated AC mains .... need advice .... I agree with all of the excellent cautionary statements that have been made. I want to clarify that the suggestions in my previous post (the third post in this thread) did not mean to suggest anything contrary to these cautions. I assume that ther... | |
| Nakamichi PA-7 Hum With time the internal power supply of the amp may become noisy due to the lack of DC filtering. If this is the case you'll need to inspect PCB for the loose soldering joints and replace power supply electrolytic capacitors.Very true, but in this ... | |
| Nakamichi PA-7 Hum I don't think lack of line filtering would have anything to do with the problem. I would focus on the following possibilities:-- Interconnect cables that might have an open shield connection somewhere, or that are excessively long, or that are low... | |
| On or off question... Check out the following thread:http://forum.audiogon.com/cgi-bin/fr.pl?htech&1228170308Regards,-- Al | |
| Running dedicated AC mains .... need advice .... My instinct would be to use ONE copper ground rod, close to the system, with the grounds of the three Romex runs coming together at one and only one physical point, at that ground rod.As you obviously realize, the upside of dedicated runs that are... | |
| computer audio ground loop hum--any suggestions? One other thought -- does your computer have one of those cheap little plastic microphones plugged into it, the kind that are intended for dictation? I've found that they are very prone to hum pickup, due to their lack of shielding. If you have on... | |
| computer audio ground loop hum--any suggestions? Are the computer and the speakers plugged into the same power strip? If they are not, and particularly if the power strip has a surge suppressor or rfi filtering built into it, the resulting isolation could conceivably be the cause.The other thing... | |
| Burn in question and evaluation before burn in There are too many variables involved for any reliable comparative conclusions to be drawn over such a time span.I agree, unless the differences in the particular case are very great, AND extreme care is taken to rule out extraneous variables. A f... | |
| Power Output of Class "D" amps Class D amps are a confusing lot. Some call them digital, others do not.Whether or not a class D amp is referred to as digital or analog is not related to its class D power output stage. What would properly be called a digital class D amp is one t... | |
| moving i tune from one computer to another Certainly. Are the computers networked together through a router? What operating system are you using (Windows XP, Windows Vista, other)?If they are not networked together, you can copy the files, or the entire iTunes folder, to an external medium... | |
| What would happen if? A complete path is certainly not required for current flow. A capacitor connected across two battery posts is a perfect example. We all can agree the di-electric separates CONTINUOUS flow.Not true. A complete path is always required for current fl... |