Altec 1579B Phono Preamplfiier Equalizer Plug-in Modules, with magnetic Phono Pick up. The cases look good, 8 pin base clean.
Item Tag: 1579A
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Vintage Altec 1579A Phono Preamplifier Equalizer Plug-In Module
Out of my personal stash. Sold as is, no returns AUCTION OS FOR (1)