Nick Hall-Patch wrote: > I believe that these old radios were usually meant to be connected > directly to a random wire antenna, Bill, so their input impedance is > high. Just saw Craig's suggestion, and it is a good one, though > with some you might find even better signal transfer assuming input > impedance as high as one or two thousand ohms.
The old SAMS schematics and Ryder manuals often had the factory alignment instructions in them for the radio model. Lots of sets tell you you put a network of impedances and a resistor across the antenna terminals before connecting a signal generator aligning the front end to simulate the expected antenna. You should be able to use this info to see what impedance ratio you might need don any matching transformer. Rick Kunath _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
