Recent content by RW Oliver

  1. RW Oliver

    Polydax / Audax HD 12x9 D25 Tweeter Replacement

    The abs plastic that supports the diaphragm is thicker than the original.
  2. RW Oliver

    Fostex speaker identification

    Well , I would certainly accept them for free. Do the tweeters work? What about the voice coils on the woofers? Are these in Manitoba?
  3. RW Oliver

    Game of what speakers are these?

    Oskar Heil visited our booth in Los Angeles back in 83 or 84. I remember him telling me that he was looking for several million dollars to develope a low frequency Heil transformer.
  4. RW Oliver

    Philips Motional Feedback Woofers

    Does anyone know what a pair of AD8067/MFB are worth?
  5. RW Oliver

    Low end fluttering

    Iron core inductors in crossover can saturate and cause the woofers to flutter. One more thing to consider.
  6. RW Oliver

    Any IDea About These Drivers????

    Herald Electronics was a retailer of woofers mids ,tweeters , crossovers and other electronic parts. They got their goods from manufacturers in the USA and Asia. The owner introduced me to people in the speaker business and that was how I got my start building loudspeakers.
  7. RW Oliver

    Would your wife allow it

    Were it not for understanding/tolerant wives ,there would not have been a speaker industry .
  8. RW Oliver

    Is there a list of ferrofluid specs?

    Ferrofluid comes in various viscosities. Contact the manufacturer of ferrofluid. They should be quite helpful
  9. RW Oliver

    We meet again, Altec 604s! Quite the find..

    I believe the slanted top is to stop people from putting potted plants or drinks on the cabinets .
  10. RW Oliver

    Opinion on state of dust cap glue/adhesive

    Use Permatex Liquid Tape ,dab on the crack or run a bead all the way around .
  11. RW Oliver

    Padding down a tweeter...

    Google L-pad calculator. The first result has the calculator and configuration you need. Try 3 db or 6 db and see what happens,not expensive to experiment.
  12. RW Oliver

    Yes we did

    Yes we did
  13. RW Oliver

    Now I’ve seen it all...

    Well, makes it easy to rotate your woofers so the surrounds don't sag.
  14. RW Oliver

    little help here please!

    Brings back old memories. Muscle magnet was a brand distributed by a company called Herald Electronics. I used to buy woofers from them 50 at a time. The owner got me started with Myron Heppner ,one of the owners of Heppner Mfg. They were great loudspeaker company.
  15. RW Oliver

    Passive radiators?

    Yes, but having a "cheap" woofer made was not cost effective. I am throwing the idea out there for anyone who wants to play with it.
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