500B Electronic Frequency Meter 500C Electronic Tach Indicator

500B Electronic Frequency Meter 500C Electronic Tachometer Indicator Operating and Servicing Manual written & published by Hewlett-Packard Co, Palo Alto, CA. Revised Edition. Paperback. Size 4to (up to 12'' tall). Condition: VG. Front cover has bottom front corner torn off, overall content excellent. 54 Pgs. Manual illustrated with drawings and black and white photographs. Includes 3 page supplement, Calibrating and Operating Instructions 500BL Electronic Frequency Meter. Description text copyright 2007 BooksForComfort. Item ID 15532.