I've been studying ferrites for nearly seven years, most of it looking at suppression applications, but in doing so, I've learned quite a bit about ferrites in general. In general, we want ferrites t
I plead ignorance to the use of any specific core materials for power amps, but I do know a bit about ferrites. My comments as to the applicability of materials is based entirely upon their LOSS char
I've not done that, but I have carefully cleaned the openings in the squirrel-cage of all three of my amps with Q-tips. This can be done without taking anything apart, and has seemed to make them run
I own several of the older Titan 425s, so can't help with access advice. I try to maximize bulb life by using long life bulbs with higher voltage ratings, and by adding diodes in series with the bulb
NO! Those "busybodies" to which you refer were smart electrical engineers who understood God's laws of physics, understood them in the context of "the big picture" of how buildings are wired and powe
Charles, There's a tutorial on Power and Grounding for Audio and Video Systems on my website that explains most of what you want to know, and it covers variations in practice over most of the world.
This is bass akwards. A power that runs on 240V MUST draw power between the two sides of 240 volts. NO NEUTRAL CONNECTION IS NEEDED UNLESS that power amp also needs power at 120V (typically to run a
Actually, there is no requirement that the ground be bare -- but there IS a requirement that if it is insulated it must be green (or taped green at exposed points). In many jurisdictions, electrical
Very true -- but they WOULD generate hum fields if the ground carries current, as it would if a load were connected between hot and ground, or if ground and neutral were bonded together within the ap
Exactly how did you use this amp at these power levels? I hope you're not one of those LIDS who cheats by running higher than legal power. 73, Jim K9YC _______________________________________________
PLEASE go back and STUDY what I and several others have written several times in this thread, and in the power and grounding tutorial that's on my website. http://audiosystemsgroup.com/publish.htm NE
There's another very good way to do it, as practiced by Ten Tec in the Titan 425. The 120V blower runs across one half of the primary of the high voltage transformer, and the center tap is not bonded
While this practice DOES exist, and a sub-section was added to NEC to allow it with severe restrictions on HOW it can be used, it is used only a few fools who don't understand the laws of physics. It
The issue is NOT distance, but rather creating a separate SYSTEM. A separate system is created by a TRANSFORMER, or by feeding another building. A power system MUST have its neutral bonded to ground
All panels are built with a neutral bus that is insulated from the steel enclosure. In most, there is a large bonding screw that shorts the neutral bus to the enclosure. If the neutral bond is not pe
Oh -- but it DOES matter if you twist neutral and green together and connect them to the power amp chassis, and you MUST connect the green to the power amp chassis! Yes. Yes. 73, Jim K9YC ___________
Read it again, Jim. In Method #1 there is NO ground conductor between buildings, and a neutral bond in both buildings.In Method #2 this IS a ground conductor between buildings but NO neutral bond in
OOPS! Cut and paste goof. Yes, in Method #2 ground MUST be carried between buildings using a conductor equal in size or larger than the phase conductors. You're probably right, and it's certainly goo
NEC requires that every SYSTEM must have its neutral bonded to the ground wire at the point where it is established, which that transformer does. So yes, it is required to be bonded. There is NOT a r
RIGHT! Back to Charles's question about which ground is better. The answer is that it doesn't matter -- ALL MUST BE BONDED TOGETHER, which makes them effectively in parallel. In addition to lowering