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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: My Adventures with Ferrite Clamps posted by Maxamillion on January 19, 2011 at 21:15:43:
Again, very interesting.
Specifically two things, that you were hearing hiss as a function of filament filtration and that putting a bead on the Romex caused problems.
I presume that you are using indirectly heated cathode tubes, after all thoriated tungsten filaments just aren't common in small signal tubes...
In my day sonny the only problems we had from the filament supply was occasional hum. I presume that nowadays you are running them with DC. Maybe it's the power line's new and very unimproved noise spectrum that's the difference. Series impedance is usually vital in any sort of conducted noise problem. When I was in the avionics biz the saying was that the radio filtered the rest of the plane. Fact is, it was true if you didn't use a series choke.
The Romex thing is interesting. You had it clamped over the whole cable didn't you? With a single feed it simply should not have touched the differential currents and not made any sonic difference. Do you have any other earth ground paths besides the 'safety' power lead? Maybe a cable TV feed without an transformer or something? Curious...
Not that you have any onus to do anything further of course, I tend to run out of interest pretty quick once things start working well, what do they say, something like the good is the enemy of the excellent? But it's interesting, I've read other complaints about ferrites messing up dynamics but never understood how they could if applied properly. Still don't.
Ah the mysteries of the audiophile world...
Rick
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Follow Ups
- RE: My Adventures with Ferrite Clamps - rick_m 22:13:30 01/19/11 (11)
- RE: My Adventures with Ferrite Clamps - Maxamillion 06:16:07 01/20/11 (10)
- RE: My Adventures with Ferrite Clamps - rick_m 07:44:41 01/20/11 (9)
- RE: My Adventures with Ferrite Clamps - Maxamillion 09:41:34 01/20/11 (8)
- Here is the URL of the RC Filter Construction, if you are interested - Maxamillion 09:49:52 01/20/11 (7)
- RE: Here is the URL of the RC Filter Construction, if you are interested - rick_m 18:45:34 01/20/11 (6)
- RE: Here is the URL of the RC Filter Construction, if you are interested - Maxamillion 20:51:41 01/20/11 (5)
- RE: Here is the URL of the RC Filter Construction, if you are interested - rick_m 07:44:53 01/21/11 (4)
- RE: Here is the URL of the RC Filter Construction, if you are interested - Maxamillion 07:57:06 01/21/11 (3)
- RE: Here is the URL of the RC Filter Construction, if you are interested - rick_m 08:19:05 01/21/11 (2)
- RE: Here is the URL of the RC Filter Construction, if you are interested - Maxamillion 11:25:43 01/21/11 (1)
- Thanks! I think. - rick_m 11:54:10 01/21/11 (0)