January 2nd, 2019, 5:08 pm
FerdinandII wrote:tomp wrote:The tabs are 1/4" "Faston" style spade lugs that I pulled off some old IBM equipment. They make a great way to connect the amp and drivers to the boards. I have lots if you need a few. I just drill a hole in the board and screw them down with a connecting lug under the screw. If you need to remove the boards for modifications you only have to lift the mating connectors off the lugs. You would need 1/4" female connectors to use with them and again there are tons of places on ebay that offer them at reasonable prices often with free shipping. Here is just one example of a connector with free shipping. They come in different sizes and with or without insulation. I keep a supply of male and female in different sizes both insulated and not on hand as they are always in use:
https://www.ebay.com/itm/100-Vinyl-Fema ... rk:26:pf:0
Or visit your local auto parts store. They will have a good selection in small quantities.
January 2nd, 2019, 5:40 pm
January 2nd, 2019, 5:46 pm
FerdinandII wrote:tomp wrote:The tabs are 1/4" "Faston" style spade lugs that I pulled off some old IBM equipment. They make a great way to connect the amp and drivers to the boards. I have lots if you need a few. I just drill a hole in the board and screw them down with a connecting lug under the screw. If you need to remove the boards for modifications you only have to lift the mating connectors off the lugs. You would need 1/4" female connectors to use with them and again there are tons of places on ebay that offer them at reasonable prices often with free shipping. Here is just one example of a connector with free shipping. They come in different sizes and with or without insulation. I keep a supply of male and female in different sizes both insulated and not on hand as they are always in use:
https://www.ebay.com/itm/100-Vinyl-Fema ... rk:26:pf:0
Or visit your local auto parts store. They will have a good selection in small quantities.
January 2nd, 2019, 5:55 pm
January 2nd, 2019, 7:29 pm
Cogito wrote:Pelliott321 wrote:The right question to ask is if one could really hear the differences in .05 mph changes
Electricity and magnetism are inseparable. Inductors are nothing but a piece of wire coiled to accumulate the magnetic forces generated by the electricity following in the wire into a single magnetic field (common poles). This accumulated magnetic field is the heart of an inductor.
The inductors in the high pass and low pass sections of the crossover work over a different frequency ranges. When the magnetic field one inductor interferes with the magnetic field of another, it creates unintended effects on the charge and discharge rates of the inductor. These charge and discharge cycles are the frequencies passing thru the inductor.
The author of that study connected the inductors in series to measure the overall effect of EM interference. It doesn’t say what the effect on the inductors is when both are operating at different frequency ranges are of different strengths.
January 2nd, 2019, 7:52 pm
January 2nd, 2019, 8:01 pm
January 2nd, 2019, 8:12 pm
Cogito wrote:Walt,
Inductors do store energy in the form of EMF.
It takes time for the inductor to fully generate EMF irrespective of AC or DC source. After EMF is fully generated, inductor behaves like a plain wire, not before.
January 2nd, 2019, 11:39 pm
tomp wrote:FerdinandII wrote:tomp wrote:The tabs are 1/4" "Faston" style spade lugs that I pulled off some old IBM equipment. They make a great way to connect the amp and drivers to the boards. I have lots if you need a few. I just drill a hole in the board and screw them down with a connecting lug under the screw. If you need to remove the boards for modifications you only have to lift the mating connectors off the lugs. You would need 1/4" female connectors to use with them and again there are tons of places on ebay that offer them at reasonable prices often with free shipping. Here is just one example of a connector with free shipping. They come in different sizes and with or without insulation. I keep a supply of male and female in different sizes both insulated and not on hand as they are always in use:
https://www.ebay.com/itm/100-Vinyl-Fema ... rk:26:pf:0
Or visit your local auto parts store. They will have a good selection in small quantities.
Probably cost more than the ones on ebay and also usually only come in assortments, most of which you will not use. I recently needed a replacement tire valve stem insert for one that was leaky on my car. The local Autozone had one for$3.50 plus tax and the time and gas to drive to the store and back. Ebay had a pack of 100 for $7.00 with no tax or shipping. I kept some and gave the rest to friends and family.
January 2nd, 2019, 11:42 pm
tomp wrote:Energy is in fact stored in an inductor just like energy is stored in a capacitor. The mechanisms are different but both store energy. An inductor stores energy in the magnetic field created as current flows through the winding and a capacitor stores energy by building up charge on the plates.
Looking at two coils that are used in a crossover when not properly spaced, the field lines building up in one can efficiently cut across the windings of the other, inducing a voltage in the other coil that can cause problems.