--- type: product schema_version: 1 stock_number: "64899-40" canonical_url: "https://www.artisantg.com/64899-40/Tektronix-389486900A" json_url: "https://www.artisantg.com/64899-40/Tektronix-389486900A.json" generated_at: "2026-11-07T05:08:59.783Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # Tektronix 389486900A Inverter Board _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: Tektronix - Model: 389486900A - Condition: Used and in Excellent Condition - Price: $90.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 2.5 lb, estimated - Shipping dimensions: 12X9X6 in, estimated ## Categories - Industrial Systems Equipment > Power Supplies > Inverters (primary) ## Details Part Numbers: 389486900A, 878-0944-01 ## Function Provides DC-AC power conversion for display backlighting and system power rails in oscilloscope mainframes. Generates high-voltage AC output for CCFL or LED backlight drivers with adjustable brightness control. Incorporates switching regulators, transformers, and feedback circuitry for stable voltage regulation. Features overvoltage, overcurrent, and thermal protection circuits. Interfaces with main processor board via control signals for power sequencing and dimming functions. Supports multiple output voltages for analog and digital subsystems. Utilizes PWM control topology for efficient power conversion with minimal heat dissipation. ## Images - - - -