I also have a Peerless 850140 25cm drive unit for a subwoofer. I have only had it about 19-20 years, in a box with a plastic port tube and a bundle of wadding. I now also have a collection of amplifiers ready to go, and I have a suitable 6dB/octave filter that I can use to make sure it doesn't get overcooked by higher frequencies.
So I really should bring all of those bits together, along with a 30-0-30 toroid, some 4700uF 63v nice capacitors, bridge rectifier and a suitably large heatsink and let's see if we can make the Lab reverberate.
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