ARS NB9M

Homebrew Hallicrafters HA-7 XTAL Calibrator


Repair & Restoration 0 Comments 05/26/2020  

Having recently scored a vintage Hallicrafters SX-122, one of the best Receivers Hallicrafters ever made, I was dismayed to find it was missing the HA-7 Crystal Calibrator. By themselves, they are very rare, and go for probably as much as the whole radio on Ebay when one does show up.

I downloaded the HA-7 manual from BAMA (It was part of the SX-122 manual) and surmised what it would take to build one. - WA6MHZ