Altec 749A

Almost nothing is documented about the Altec 749A. The only surviving record appears to be a classified ad in Audio (June 1979, p.112), where an owner offered one for sale: an "ALTEC LANSING 749A EQUALIZER, Rack Mountable, w/ sound level meter & tapes. Paid $1100, sell for $500." That one line tells us it was a rack-mounted equalizer, that it came with a sound level meter and presumably test tapes, and that the seller claimed to have paid around $1,100 for it in 1979. No specifications have turned up in the period press or surviving literature. That means no frequency bands, no filter types, no input or output levels, no dimensions. Whether it was a graphic or parametric equalizer, single-channel or stereo, is unknown.