{"product_id":"giddings-lewis-dual-output-voltage-regulator-board-501-03175-00-0226-543","title":"Giddings \u0026 Lewis Dual-Output Voltage Regulator Board 501-03175-00","description":"\u003cp\u003eThis listing is for a used Giddings and Lewis dual-output voltage regulator board, part number 501-03175-00, dated RA 8\/84. The board silkscreen is labeled REGULATOR and identifies two independently adjustable regulated output sections: VR1-1 for +12V and VR1-2 for -12V ADJUST. Terminal blocks labeled TB IN and TB OUT provide input and output wiring connections.\u003c\/p\u003e\n\n\u003cp\u003eThe board is populated with two TDK Lambda TO-3 package linear voltage regulators: an LAS15U (positive adjustable, date code 8515) and an LAS18U (negative adjustable, date code 8440), each mounted to individual black aluminum heat sinks. Adjustment potentiometers are 752-207 5K trimmer types, one per output channel. Bypass and filter capacitors include tantalum bead capacitors at C2-1, C2-2, C3-1, and C3-2 positions (marked X0104K5). Additional passive components include resistors and diodes on the component side. The board mounts via four corner holes.\u003c\/p\u003e\n\n\u003cp\u003eThis compact regulator board provides regulated dual ±12VDC supply for Giddings and Lewis CNC machine tool control system use. It is a discontinued, obsolete component available only through the industrial surplus market.\u003c\/p\u003e\n\n\u003cp\u003eStock # 0226-543\u003c\/p\u003e","brand":"Giddings and Lewis","offers":[{"title":"Default Title","offer_id":48856844468464,"sku":"m00543","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/6648\/7280\/files\/CD3FDDB8-89AD-4B6E-B43B-F70193D17093.jpg?v=1771630759","url":"https:\/\/mroexchange.com\/products\/giddings-lewis-dual-output-voltage-regulator-board-501-03175-00-0226-543","provider":"MRO Exchange","version":"1.0","type":"link"}