Reference Supply

This document is a technical schematic for a precision electronic voltage reference supply circuit. The circuit utilizes a differential transistor pair (Q1 and Q2) and a power transistor output stage (Q4) to regulate voltage. Key features include:

• Inputs/Outputs: The circuit operates between a +10V input and a -15V supply, providing a -10V output.
• Key Components: It features a 1N823 reference diode, a 2N456A power transistor, and a variable potentiometer (R10) for adjustment.
• Specifications: It includes specific tolerance ratings for resistors (1% metal film for precision, 5% or 10% for others) and power handling requirements (noted as 1W or 2W for certain resistors).
• Notes: The document specifies standard component types, such as DEC2219 transistors, and provides general guidelines for default resistor tolerances and power ratings.