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RPI Part#	Document Type	OEM	Model	Resource
ADD238	Videos & PPT-PDFs	A-DEC	Handpiece Control Block 500 Series (38.1776.00), Diaphragms, Handpiece Control Block 300 Series (38.1970.00), Handpiece Control Block 500 Series (38.1933.00), Handpiece Control Block 500 Series (38.1972.00)	Introduction to Servicing the A-dec Handpiece Control Blocks (PPT-PDF)