AudioCircle
Other Stuff => Archived Manufacturer Circles => Hagerman Technology => Topic started by: Grinnell on 10 Dec 2014, 04:05 pm
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http://www.ebay.com/itm/Hagerman-Audio-Products-Inc-HAPI-High-End-Audiophile-Pre-Amplifier-/121512620908?pt=US_Record_Player_Turntable_Parts&hash=item1c4ab7736c
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A google search reveals that this is the work of the late Stewart Hegeman. An additional search on audiokarma & the asylum will give you a wealth of information