QST, Feb 1950, p. 95.
QST, Sep 1950, p. 103. (model 500 w/o TVI supression)
600-S: QST, Nov 1952, p. 115. (WIth TVI supression.)
Walter Ashe catalog, 1954, p. 8.
Power input with Lysco’s model 500 was 25 watts on the 160–10 meter bands. The final amplifier was an 807. It could be VFO or crystal-controlled; $87.50, 194
