QST, Apr 1974, p. 4. ("new" FRS-101S)
QST, Oct 1974, p.4. (a few details)
FR-101S
QST, Jan 1975, p. 143. (so intro date in 1974)
QST, Feb 1976, p.128
QST, Sep 1975, p. 169. (FR-101)
QST, Oct 1975, p. 153. (FR-101S)
QST, Mar 1976, p. 132. (FR-101S)
Matches the FL-101 transmitter.
There is also a digital version of the 101S.
"Close out": QST, May 1979, p. 192.
