thi sis an AC line filtering kit from Serge... if you do not know his work, he builds mainly battery gear as he feels that DC power from AC lines pollute the signal chain.. so he builds large isolation transformers and wound these MASSIVE chokes for cleaning up the AC lines...
I can't provide support for these, but i can guarantee that they are all in good condition and measure as they should.. this is near scrap price for this much copper, so what do you have to lose?
i think i can get these into three flat rate boxes for shipping inside the USA for ~$80.... if you really want me to ship these elsewhere, I will consider it for an extra $100... they are large and heavy..
I have no idea what these cost new, but I am going to guess that each choke cost more than what I am asking for the entire set... I just do not want to scrap them... he must have put much hand labor into these...
each bobbin is ~7" x 5" x 4"...
thanks!
peace,
jeffrey
I can't provide support for these, but i can guarantee that they are all in good condition and measure as they should.. this is near scrap price for this much copper, so what do you have to lose?
i think i can get these into three flat rate boxes for shipping inside the USA for ~$80.... if you really want me to ship these elsewhere, I will consider it for an extra $100... they are large and heavy..
I have no idea what these cost new, but I am going to guess that each choke cost more than what I am asking for the entire set... I just do not want to scrap them... he must have put much hand labor into these...
each bobbin is ~7" x 5" x 4"...
thanks!
peace,
jeffrey
So these are air core coils that you hook up to 50 or 60 Hz AC? That should generate quite the field around them. How far away from the audio equipment do they have to be installed? Or are there yokes/cores for them as well?
Does not look safe at all with bare copper wires (it is against forum rules too*) that are simply not allowed according electric rules/regulations practically everywhere certainly if they are used with mains voltages. Please take care of yourself and your safety when implementing snake oil products!
*Reported, sorry.
*Reported, sorry.
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hello Gruesome,
Thank you for your input. I am not the manufacturer, nor have I used these. I do want to extend Serge, who has never been anything but polite and thoughtful to me, the professional courtesy of assuming he has had good success with these products and that they perform the function that are intended to. The person I acquired them from used them successfully in his system, but changed gear, as audio searchers tend to do.
peace,
me
Thank you for your input. I am not the manufacturer, nor have I used these. I do want to extend Serge, who has never been anything but polite and thoughtful to me, the professional courtesy of assuming he has had good success with these products and that they perform the function that are intended to. The person I acquired them from used them successfully in his system, but changed gear, as audio searchers tend to do.
peace,
me
Hello jean-paul,
Then how do people sell bare transformers, capacitors, or resistors here? do they not all have exposed parts that must be enclosed or otherwise connected? I would hate to see parts sales disappear from this website. That would be sad, indeed...
peace,
me
Then how do people sell bare transformers, capacitors, or resistors here? do they not all have exposed parts that must be enclosed or otherwise connected? I would hate to see parts sales disappear from this website. That would be sad, indeed...
peace,
me
also, the wire used in this gear must be enamel coated, how else would the inductors perform as inductors?! Inductors, like transformers, cannot be wound with bare wire.... enamel coatings are very high voltage... much more than typical PVC coated wire found in many audio products....
me
me
Sorry, we should not interfere with somebody else's sales thread. As the seller says, this has a lot of copper on it, and what you do with it, is the buyer's business.
You could buy these for the coils and use them as is, or unwind and use the wire to wind your own, or whatever.
It's the DIY forum, innit?
You could buy these for the coils and use them as is, or unwind and use the wire to wind your own, or whatever.
It's the DIY forum, innit?
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dear jean-paul, why did you not also post this below Dmitri's ad for a toroidal transformer? that toroid is to be mains connected and has exposed terminals. I am genuinely asking.
jeffrey
jeffrey
I must be silly to reply to a remark on a thread of a perfectly normal PCB mount toroid but I will genuinely reply. Maybe you should read up on electric safety. Every PCB mount toroid has pins that go into a PCB. We do not see a PCB nor any unsafe issue. Transformers without pins or connections to those will be very safe and very silent. Possibly too safe & too silent.
In this thread we see twisted bare copper wiring (partly cotton insulated) soldered to uninsulated AMP connectors of caps. All floating as well. Picture 4 and 6. That is category "UNSAFE".
In this thread we see twisted bare copper wiring (partly cotton insulated) soldered to uninsulated AMP connectors of caps. All floating as well. Picture 4 and 6. That is category "UNSAFE".
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and those PCB pins come through the other side.. if you touch them, you DIE....
this is a DIY audio forum... that is literally the title of the forum...
if it will make you happy, I will remove and keep the plug and IEC inlet... sell as the original kit that it was...
I suspect that there is something else going on here... below the surface... I do not think I know you.. and to target someone for selling capacitors and inductors on a DIY audio forum is strange and suspect.. I did note your use of "snake oil" above.. so there is some subjective judgement going on here.. I am at a loss as to what that is... every mains filter I have ever used was made of capacitors and inductors... are people not allowed to DIY their own? must we also stop building amplifiers?
this is beyond silly..
me
this is a DIY audio forum... that is literally the title of the forum...
if it will make you happy, I will remove and keep the plug and IEC inlet... sell as the original kit that it was...
I suspect that there is something else going on here... below the surface... I do not think I know you.. and to target someone for selling capacitors and inductors on a DIY audio forum is strange and suspect.. I did note your use of "snake oil" above.. so there is some subjective judgement going on here.. I am at a loss as to what that is... every mains filter I have ever used was made of capacitors and inductors... are people not allowed to DIY their own? must we also stop building amplifiers?
this is beyond silly..
me
DIY is not a license to build unsafe stuff let alone to sell such items. There is not much "below the surface" but selling stuff as on picture 4 and 6 is beyond silly indeed. Nothing against the coils, a lot against bad workmanship including unsafe practices and not keeping to minimum standards for electrical safety. If that target is not clear by now further explanation won't land either but I think you are quite aware of what is meant.
The thin enamel layer is easily damaged that is why normally a thicker plastic (PVC, PTFE etc.) insulation sleeve is used on such wire. All to avoid accidentally touching live wiring. A specific color is given to indicate a certain function of that wire like L, N or PE.
The thin enamel layer is easily damaged that is why normally a thicker plastic (PVC, PTFE etc.) insulation sleeve is used on such wire. All to avoid accidentally touching live wiring. A specific color is given to indicate a certain function of that wire like L, N or PE.
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I expect normal enameled wire to have insulation rated for 600 volts.
When using wire for a transformer primary rated for 120 volts AC I would expect the insulation to be rated for 4,000 volts or more. That is because there are voltage spikes on the AC mains, some can reach thousands of volts for microseconds.
I also would not use wood for a coil form for any power inductor.
I have no doubt installing those parts as a power line filter can change the sound. Some due to the added filtering and some due to the increase in resistance.
If the filters were installed in the secondary of a power supply of less than 25 volts that might be legal under the US National Electrical Code.
Yes they are nice looking parts. Just not legal in most uses and localities.
When using wire for a transformer primary rated for 120 volts AC I would expect the insulation to be rated for 4,000 volts or more. That is because there are voltage spikes on the AC mains, some can reach thousands of volts for microseconds.
I also would not use wood for a coil form for any power inductor.
I have no doubt installing those parts as a power line filter can change the sound. Some due to the added filtering and some due to the increase in resistance.
If the filters were installed in the secondary of a power supply of less than 25 volts that might be legal under the US National Electrical Code.
Yes they are nice looking parts. Just not legal in most uses and localities.