The Raytheon manual on things to do with your CK-722 has a receiver
that uses a crystal set to develop enough DC to run a CK-722 receiver
tuned to the same station.

The obvious improvement is use a crystal set to listen to another
station entirely with the transistor radio.

It sucks a little of the energy out of the local broadcaster, reducing
his antenna pattern, so you can hear a more distant station.
--
Ron Hardin


On the internet, nobody knows you're a jerk.