245_MHz_TO_147_MHz

Published:2009/7/4 21:56:00 Author:May | From:SeekIC

UsesQ1 as tripler to73.5 MHz for frequency-modulated input of 24.5MHz, and Q2 as doubler whose output tank is tuned to 147 MHz by C6 and L3. Output is about 200 mW of RF. L1 is 20 turns No. 26 with center tap, on 0.5-cm form. L2 is 8 turns No. 22 on 0.8-cm form. RFC is 25 turns on 0.5-cm form. Article covers troubles likely to be encountered.-B.Hoisington, Frequency Multiplication the Easy Way, 73 Magazine, Oct. 1973, p 69-71.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/245_MHz_TO_147_MHz.html

Print this Page | Comments | Reading(3)