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  1. M

    Simple Attenuators - Design And Testing

    Hey guys, I have been tied up with different projects but now have all my supplies and am ready to go. I have an air core resistor but no great way to hold it to the chassis, like a nylon spool. Does anyone have any ideas? Also, following up on the previous post, if one wanted to add one more...
  2. M

    Simple Attenuators - Design And Testing

    Any comparisons of this attenuator with PPIMV? I imagine the attenuator would stay truer to the sound because you would have no loss of negative feedback. I am thinking of building a 50W Plexi with PPIMV that would allow some nice tweaking in conjunction with this attenuator.
  3. M

    Simple Attenuators - Design And Testing

    Thanks, I will have to check that out. Hopefully Madisound will also get more in stock.
  4. M

    Simple Attenuators - Design And Testing

    Any store other than Madisound recommended for obtaining the air core inductor? Their website lists the 0.85 19AWG inductor as out of stock. Thanks!
  5. M

    Simple Attenuators - Design And Testing

    Got my resistors today from a slow boat, so I am going to start my build soon. Looking forward to starting the build!
  6. M

    Simple Attenuators - Design And Testing

    Yes, building the 8 ohm version. I have the case and most of the resistors. Just need to get the jacks, switches, and air core resistor.
  7. M

    Simple Attenuators - Design And Testing

    Will using a 16 AWG at 0.9 for the coil work? I see Madisound has them. Would that be too large for most enclosures?
  8. M

    Simple Attenuators - Design And Testing

    I am looking to make one for a 50 watt plexi (1987). Sounds like 19 gauge should work, I will check it out.
  9. M

    Simple Attenuators - Design And Testing

    For the air core resistor, does anyone have a good source in the US? I just need to source that part. Thanks!
  10. M

    Simple Attenuators - Design And Testing

    Anyone have a good source for 25W resistors? I am having a hard time tracking down ones for 4.7 ohms on Ebay from China. Second question - what heat paste is everyone using to mount the resistors? Third question - is there a good source in the US for the screws to mount the resistors? I am...
  11. M

    Simple Attenuators - Design And Testing

    My 6V6 Plexi puts out about 22 watts, but it is the loudest 22 watts I have ever heard. That is great advice to spread out R1 and R2 to help dissipate heat. I would like to build a 1987 50 watt clone at some point, so this attenuator will come in really handy.
  12. M

    Simple Attenuators - Design And Testing

    Hi Gene, thanks for the info! I am located in Virginia here in the good old USA. I am going to be using this unit primarily with a 6V6 Plexi that I built about a year ago. I plan to use it beside the amp head, and not built into an amp. I like the idea of having the resistors on the top...
  13. M

    Simple Attenuators - Design And Testing

    Gene - I looked at your post 178, it said you were having some serious heat issues with your build. Did you get that squared away? Mike
  14. M

    Simple Attenuators - Design And Testing

    Thanks a bunch, I just ordered one of those boxes. Looks high quality and durable.
  15. M

    Simple Attenuators - Design And Testing

    Thanks for all the replies, much appreciated! Does anyone have a favorite chassis for this project? I would like something aluminum and sturdy, but not too large.
  16. M

    Simple Attenuators - Design And Testing

    Hey guys, I am really impressed by all the work that has gone into this thread! I am planning on building one of the 8 ohm versions, and have a question about parts: 1. I am located in the US, is everyone purchasing wire wound resistors off eBay from China? 2. What size screws do you need...
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