Quantronix 204-12Q 114 Nd:YAG Laser Power Supply 208 VAC 60Hz Water-Cooled 1985

Quantronix 204-12Q 114 Nd:YAG Laser Power Supply 208 VAC 60Hz Water-Cooled 1985

The Quantronix 204-12Q is the dedicated power supply cabinet for the Quantronix 114 YAG Laser System, a pulsed Nd:YAG solid-state laser platform manufactured by Quantronix Corporation of Smithtown, New York. This unit was built in April 1985 and houses the high-voltage lamp-driving circuitry, water-cooling loop, and control electronics needed to power and regulate the 114 laser head. The Hobbs meter reads approximately 1,058.9 total hours of operation.

Specifications & What's Included

• Manufacturer: Quantronix Corp., 225 Engineers Rd., Smithtown, N.Y.
• Model: 204-12Q
• IDENT: 0102-00234
• For system: Quantronix 114 YAG Laser System
• Input Power: 208 VAC, Y (Wye), 60 Hz
• Fuse – Line: 600V-FNQ, 20A
• Fuse – Auxiliary: 250V-3AG, 2A and 3A
• Cooling: Water-cooled; primary reservoir requires deionized water (per rear panel caution label)
• Hobbs meter (Stewart Warner): approx. 1,058.9 total hours
• Manufacture date: April 1985
• Form factor: Floor-standing cabinet
• Output connectors (rear): J1 (7-pin circular), J2 (2-pin circular), J4, J5, and additional labeled connectors
• Controls (rear): PWR ADJ, PULSE ADJ, GATE, SYNC, OUT, PHASE ROTATION indicator, INTERLOCK connector
• HIGH VOLTAGE warnings posted on rear panel
• Power cables attached as shown in photos

Applications

The Quantronix 114 is a Q-switched and free-running Nd:YAG laser system that was widely used in scientific research, materials processing, and industrial applications through the 1980s and into the 1990s. Nd:YAG (neodymium-doped yttrium aluminum garnet) lasers at 1064 nm were the workhorses of pulsed solid-state laser technology during this period, used for tasks such as laser rangefinding research, hole drilling, scribing, interferometry, and photonics laboratory work. The 204-12Q power supply is the heart of the system — it provides the precisely controlled high-voltage pulse energy to fire the flashlamp that excites the YAG rod. Finding a replacement or parts-donor supply for a Quantronix 114 system is increasingly difficult given the age of the platform, making this cabinet a valuable source of components including high-voltage capacitors, transformers, control boards, connectors, and the water-cooling circuit.