Jump to content

John Warren

Regulars
  • Posts

    2293
  • Joined

  • Last visited

  • Days Won

    2

John Warren last won the day on July 3

John Warren had the most liked content!

2 Followers

Profile Information

  • Gender
    Not Telling
  • Interests
    Engineering-Audio, magnetics, materials for electronic and magnetic applications, engineering models and simulation, SPICE, MATLAB, FORTRAN, acoustics, complex algebra, physics of sound, microphones, vintage audio, loudspeaker design, amplifier design, McIntosh amplifiers, discrete semiconductor devices.....and movies including silents, foreign and indies.
  • My System
    Speakers:
    12" Utah Tri-axial drivers mounted in LRE bass "reflex" enclosures.

    Tuner:
    Sony Superscope FM only

    Amplifier:
    Lafayette Solid State Stereophonic Integrated Amp

    Cables:
    16 GA Lamp Wire

    Headphones:
    Koss Pro 4AA

    Turntable:
    Technics SL-QD33

    CD Player:
    NAD 325i (modified)

Contact Methods

  • Website URL
    https://www.northreadingeng.com
  • Skype
    https://www.facebook.com/northreadingeng

Recent Profile Visitors

12690 profile views

John Warren's Achievements

Forum Veteran

Forum Veteran (4/9)

531

Reputation

  1. and I have a total of 2293 posts. Thats a bit less than 2/week.
  2. Yes, I'm thinking Dremel as well. They come in a range of capacities too. For what I'm doing the chassis is replaced so damage isn't a concern, that's why I've been using the angle grinder. Couple of touches with it and they're out.
  3. For those that are tool types, I've been using a highly inappropriate tool to grind the heads of amp chassis rivets, a Milwaukee angle grinder. It's total overkill not to mention they're risky tools to use and can get away from you. The rivet heads are tiny and take little to grind off, the angle grinder is a brute force, too aggressive tool for this application. I've been looking at die and pencil grinders using a stone tip there's many of these available. There's always Dremel but do they have enough for this application? My question is can someone that has experience with these tools offer a grinder recommendation. I have a compressor as well but would prefer electric motor. Thanks!
  4. It's a SR flip flop that will output a 0 and a 1 state. A square wave is a 0 and 1 state and it can output sq. waves so sure I'm with you. But these are digital logic circuits, and there's a world of understanding associated with them, far beyond my level of intelligence or interest.
  5. Flip-flop Master Electronic: Flip-flop circuit (master-eletro.blogspot.com)
  6. On target. I heard a couple of tunes from a 1990s mix on Amazon Music and was like, "umm, what did I just hear?"
  7. I've been listening to the recommendations btw! It also highlights the range of musical tastes of folks, excellent!
  8. A few more photos perhaps. This doesn't look like a factory EV unit. The EV cabinet shop was located in Buchanan, MI. EV cabinet work was excellent, best in the industry and comparable to JBL. EV horns were, if memory serves, all 3/4" thick stock. I don't think they ever sold a "decorator" type unit.
  9. Oh my! and yes, University of Virginia, 1994, PhD Materials Science and Engineering. Unfortunately, products with the goofiest claims in audio are associated with materials science, more specifically, metallurgy. However, the absolute STUPIDEST thing in audio is a non-existent physical phenomenon that cable "lifts" are solving, the so-called interaction between the electrons passing thru the cable and the floor. FFS, Maxwell would get a laugh out of that one!
  10. How exciting, thank you Travis for taking the time and effort!
×
×
  • Create New...