[Heathkit] WANTED HD-11 Q Mulitiplier

[Cold Old Stone Crab]

*Looking for a pair of Heath model HD-11 Q Multipliers! It is wished that
units be fully functional  but I'm willing to deal with used reparable units
that are free of rust and have no missing parts. Original manuals are wanted
and any or all modifications  should be detailed. Contact Ric, C6ANI; with
details and cost, shipping will be to a  USA zip code; thank you!*