Overload protector (CB8362E)

This circuit was found in a 1967 RCA publication. The circuit uses components from that time, and can be used with loads up to 240 W.

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Experimental AM Receiver (CB17018E)
This good receiver contains 6 coils wrapped in ferrite rods. L1 has 20 turns of wire 28 and L2 /...
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Low battery indicator (CB21619E)
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