QST, Feb 1975, p. 127.
QST, Sep 1975, p. 113 (210X and 215X - Extended frequency range and a couple of other tweaks.0
QST, Apr 1976, p. 91.
QST, Jul 1976, p. 131. (chart and a few details)
QST, Nov 1977, p. 105.
210 – 80–10 Meters
215 – 160–10 Meters
With optional AR-117 AC console ($129.00).
