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Crossover mockup boards

D1PP1ND1PP1N
in DIY
I started to make these 2 boards for holding a bunch of crossover components.  I'm trying to get most values on there so I can do a quick build and try close values before ordering the real thing. I need to make a bunch of spades up with like 10-12 inch leads so I can connect them all. I haven't started the coil one but Its the same size oak board and I will put a big variety on there with some caps and resistors as well. 

I will put in threaded inserts to attach them and a handle to carry it / hang it up so itsorry not out all the time. I just started it so I need to order some more resistors and a few caps. There is a spacing issue that is tricky to get all 12 slots populated. If u have any suggestions or comments feel free to mention them. I'm frustrated with twisting leads together and moving parts to just listen To a tiny change. 
jr@macMzissersonkennykgreywarden4thtryBryan@MAC

Comments

  • JasonPJasonP
    I've been using twist caps and winging it for a long time. I think what you are doing is close to optimal. Here are my thoughts:


    Space the terminal strips well. If you do so, then you can just screw in caps, resistors, and coils without needing to alter them.
    Get a ton of jumper wires. These will let you do the connections between components in the terminal strips.

    Wait... you are making cap and coil boards. Nevermind! I thought you were doing board to quickly mockup XOs, my fault!
    = Howard Stark: "This is the key to the future. I'm limited by the technology of my time, but one day you'll figure this out."
  • MzissersonMzisserson
    Thats a sweet idea. 
  • D1PP1ND1PP1N
    I'm not looking forward to making all these spade / fork leads but I got 50ft of wire to cut up lol
  • D1PP1ND1PP1N
    A little more progress on the capactor and resistors board. Basically I'll have small increments in resistors from 0.5 ohms to 12ohm, I'll keep the middle spots open with the 6 position block terminals for any specific needs that aren't on the board. The second row of 12 positions has some empty spots for the resistors I'm missing but I put a 20uf and 2x 15 to get me in 5uf increments from 15-50uf. 

    Current resistors are .51, 1, 1.2, 1.5, 2, 3, 3.3, 4, 4.7, 5, 6 (missing a few) 8.2, 11 and 12.

    The npe ranges are in order , 8.2, 15, 22, 33, 47, 80, 80, 100 and 150. Those combos should be able to get me most values within 250uf. 

    The poly ranges are in order  1.0, 1.5, 2.5, 3.9, 4.7, 1.0, 6.8, 8.2, 10. I placed the 2nd 1uf inbetween 4.7 and 6.8 to get 5.7 or 7.8 with a single fork spade. 


    JasonPgreywarden
  • jr@macjr@mac
    Very nice!

    Reminds me I need to finish my multi-tap inductor project. I unwound and then rewound a laminate core inductor and introduced multiple taps. Works like a champ. If I get time between now and then, I will document it and share it. Pretty cool concept.
    FaceD1PP1N4thtrykennykMzisserson
    I have a signature.
  • D1PP1ND1PP1N
    That would be awesome JR. The layout for a bunch of coils on a board really sucks. It's going to be heavy and take up alot of space im not certain how to lay the coil board out but if u can get numerous taps on 1 coil that could be very useful for this application. I mean these are all space parts I have sitting in a bin so now they are organized and easy to see and read so it should make the design phase and tweaking alot easier. 
  • FaceFace
    Multiple taps may be easier on a Goertz foil inductor.
  • Bryan@MACBryan@MAC
    Mike, let me know if you need any additional parts. I've got lots of XO shit that's sitting in boxes. Unfortunately I'm not doing anything anytime soon so I'd not have a problem helping you to fill some value gaps in your project. Hit me up if you need anything. And great job BTW
    My signature goes here
  • D1PP1ND1PP1N
    Will do Bryan. I just ordered some stuff to fill in the values from Meniscus.
  • D1PP1ND1PP1N
    I finally need to get going on the coil board. I made up a bunch of wires yesterday to quickly connect to the terminals  i need to make some with the alligator clips too. I cut the boards all in half to save space and i plan to make taller stand offs so that its a thinner easier to store and carry unit. 

    My question is, can i put like 10-20 coils on this board close together without messed up values? I thought mutual inductance will only occur when all the coils have current going through them and since only 2-4 coils should be going out of the many on there maybe it wont be a problem. Am i wrong? 
    greywarden
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