Airpax -- The Contact Modulator -- 8 booklet series by the Engineering Staff of Airpax with more than anyone ever needed to know about choppers. About 30 pages per booklet. Very good condition 1958-1960 -- $50
General Electric Nickel-Cadmium Battery Application Engineering Handbook -- 1971 plus supplemental volume 1973. Just a bit of writing on the cover of the first book, otherwise very good condition. $10 both books.
Microchip Embedded Control Handbook V.1, 1997 -- $15National
Siliconix MOSPOWER Applications -- Hardbound 1985. Approx. 200 pages. Excellent condition, $40.