Note
QST, Jan 1965, p. 149.
QST, May 1966, p. 125.
Only a half-dozen L'il Lulu receiver prototypes were produced. These were distributed as part of a beta-test project, with improvements and changes in each receiver. None of the known prototypes exactly duplicates another. The 6 meter receiver first appeared in January 1965 magazine ads and continued to show up by itself, or paired with the matching transmitter, before disappearing completely a year-and-a-half later.