ekco: U243 ; DM70 Magic Eye

The DM70 is quite a long life Magic Eye, but it is the opposite sense to the more common mains radio "magic eyes". It was developed for Battery sets, but due to the design, the bar is "full" for no signal (near zero AGC volts, most gain) and as the AGC voltage becomes more negative (to reduce gain as it's a stronger signal) the DM70 grows shorter. There are a few other mains Radio sets with DM70 by French and German makes too.

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