Diode-Bridge Voltage-Controlled Attenuator

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		(title "Diode-Bridge Voltage-Controlled Attenuator")
		(date "2026-10-07")
		(rev "A - prototype")
		(company "OpenAI engineering deliverable")
		(comment 1 "Regulated external +/-12 V rails; 100 kOhm onboard output load")
		(comment 2 "Provisional PCB rules; not fabricator approval")
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