The seven tube HR-10B, like most Heath products, was sold in kit form.  It was introduced in 1968 as color-upgrade successor to the HR-10 introduced in 1961.  Coverage is ham-band only.  The HR-10B color matches the DX-60B transmitter while the HR-10 matches the DX-60.    A review of the HR-10 can be found in the July 1963 QST magazine.