Vintage Boschert XL 200-3603/4603 Power Supply Board 300W Sun Microsystems For Sale

Vintage Boschert XL 200-3603/4603 Power Supply Board 300W Sun Microsystems
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Vintage Boschert XL 200-3603/4603 Power Supply Board 300W Sun Microsystems:
$250.00

**Brand:** Boschert Inc. / Sun Microsystems Spec

**Model:** XL 200-3603/4603

**CSA File / Type:** LR50913 Custom Rectifier

**Power Rating:** 300 Watts (300W)

**Input Voltage:** 110V / 220V Selectable AC (50/60 Hz)

**Country of Manufacture:** Hong Kong


**Technical Overview:**

Heavy-duty, long open-frame switching power supply unit designed for late 1980s vintage enterprise server gear and Sun Microsystems computing systems. Features premium Boschert main transformers, a quad block of primary blue electrolytic smoothing capacitors, and secondary red filtering capacitor rails securely housed inside an integrated aluminum U-channel chassis.


**Condition Notes:**

Pre-owned / Vintage server surplus hardware. The unit is in excellent cosmetic condition. The printed circuit board layout is exceptionally clean with no trace delamination, field updates, or burn spots. All electrolytic capacitor tops are completely flat with no signs of leaking or bulging. The factory safety decals and white identification label are crisp and 100% legible. Features legacy handwritten bench notes from historical maintenance on the casing shell. Sold AS-IS / Untested due to a lack of a compatible vintage hardware mainframe to load-test the active DC rails. Essential spare for Unix workstation preservation and retro-computing hardware repair.

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