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NuTone Intercom Photo Gallery > NuTone NM200 Radio Intercom Master Station > NuTone NM200 voltage regulators with arrows

NuTone NM200 voltage regulators with arrows

The 2 blue arrows and the red arrow on the left side of the picture point towards 3 voltage regulators.

The voltage regulators with the blue arrows have clip-on heat sinks attached to them. 

The red arrow on the right points to one on the output transistors.