Hello, I have a K6727 receiver on which I’m trying to further increase the range it can receive a signal from my K6706 transmitter. Is this possible? If so, which elements or parts need changing/replacing? My understanding is there needs to be a wire added, but where exactly? Thanks.
This obsolete kit has been designed to operate without additional antenna.
You could experiment by adding e.g. 30cm of wire to the collector of T1.