5_V_FROM_AC_OR_DC

Published:2009/7/17 5:33:00 Author:Jessie | From:SeekIC

Developed for use with secondary frequency standard to permit checking frequency of amateur radio transmitter at station or in field. Any battery capable of delivering 250 mA at 9-15 V is suitable.-T. Shankland, Build a Super Standard, 73 Magazine, Oct. 1976, p 66-69.



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