Ill caution you, the reader beforehand . Beyond the repair and restoration aspect, this gets into obsessive compulsive test gear territory. You have been warned. Impedance Bridges have always represented the um-teenth degree of specificity with regard to accuracy and performance. Trying to pull this off on a Heathkit is no easy feat. This item is NOT user friendly. Of course I had to restore it with the best possible fraction of a percentage components I could get my hand on so I could pit it against my GenRad 1650A in an Impedance Bridge accuracy shootout.
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