Triac activated switch (CB9088E)

This circuit is from an 80's Radio Electronics. It triggers a load powered by the power grid from the audio signal captured by the microphone.

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Protected 1 A Power Supply (CB834E)
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Line Amplifier (CB19052E)
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CMOS Oscillator with 4001 or4011 (CB13143E)
The maximum frequency of the oscillator shown in figure 10 is on the order of 5 MHz, depending on the...