Well I have always been searching the INTERNET for my fathers pen name or company name and finally (it took me a while) someone is asking about it!
Well, I am the son of Robert Mikulyak Sr. who worked for Bell Laboratories in Murray Hill, NJ. He designed, developed, built and sold many pairs of these horn load design speakers. And yes, NOW is the time in years that the drivers are finally dieing. I have been searching for drivers that work in these cabinets for many years. I have learned a little from him about what to look for and how to build these cabinets. But so far, there haven't been any one the market that can reproduce and handle the pressure of the horn that is in this cabinet. I am still searching and lately have had more time to learn about these cabinets. My father is getting old and is now in assisted living. While cleaning out our family residence for the past 60 years, I still have yet to come across his notes on this design. I only have a few concepts and formulas to go by at this time.
But I will try to keep you up to date on these and will prove to you I am whom I say I am by posting a picture of the sales brochure as soon as I can.
Keep watching . . . .