Giving Away old Loudspeaker Design and Measurement Instruments

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      • June 10, 2024 at 4:04 pm #54127

        Hello. I’m an old hobbiest speaker designer/builder. I worked in the 90’s. I’m 79 years old and cleaning out my basement. This stuff will go to the dump if no-one wants it. It’s yours for the cost of shipping (or pick it up in central Maine). Here’s what I have:

        An Imp system from Liberty Audio. This requires a special Echo DSP board which will only fit in very old computers.

        An old computer box with the Echo board and Windows 98. Laud is also installed here.

        A Mitey Mike microphone as described in a 90’s issue of SpeakerBuilder magazine.

        A Liberty Instruments box to control the microphone or input devices to the IMP.

        A Wheatstone bridge to accurately measure DC resistance of speaker drivers.

        A Heathkit frequency counter, modified to count low frequency signals over 10 seconds

        A Heathkit audio signal generator (which runs on 2 9-V batteries. One could put in a simple DC power supply. I don’t recall if the batteries are wired in series or parallel.

        Quite a lot of old literature – books on speaker design, Articles from SpeakerBuilder. Unfortunately I discarded my SpeakerBuilder magazine collection.

        It’s all yours for the cost of shipping. Email me if you’re interested at rprior04938@gmail.com.

        RodinME.

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