The Tuned Radio Frequency (TRF) Receiver
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From 1953 an article explaining in depth the valve circuits used in a TRF radio. Covered are The RF Amplifier,The Detector,The Output Stage and Power Supplies. Sorry about the first 2 pages being Pink in colour. That was how it was printed. |

Last updated 9.5.2006
2003-2004 © Maurice Woodhead
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