{"product_id":"giddings-and-lewis-linear-isolator-circuit-board-501-04172-00-502-03326-00-0226-556","title":"Giddings and Lewis Linear Isolator Circuit Board 501-04172-00 \/ 502-03326-00","description":"\u003cp\u003eThis listing is for one used Giddings and Lewis Linear Isolator circuit board, assembly number 501-04172-00, schematic number 502-03326-00, with board number 374200 visible on the PCB. The board is designed as a dual-channel linear signal isolation card featuring two Burr-Brown ISO100AP precision isolation amplifiers (IC-1 and IC-2) and a Burr-Brown model 722 HV-ISO DC\/DC converter module (IC-3) providing isolated power for both channels. Each channel section is labeled SIG1 and SIG2 and includes a 12-position screw terminal block for field wiring connections with terminals numbered 1 through 12. Yellow film capacitors are installed at each terminal block section for signal filtering. IC-4 and IC-5 DIP socket positions are populated. On-board blue trimmer potentiometers VR1-2, VR1-3, and VR1-4 are present for per-channel offset and gain calibration. Metal film resistors and ceramic capacitors populate the remaining circuit areas. A gold-fingered edge connector at the top of the board allows plug-in installation into a compatible Giddings and Lewis CNC backplane. This board provides galvanic isolation of analog signals within Giddings and Lewis CNC machine tool control systems. All components appear visually present with no visible signs of burning, cracking, or physical damage. Buyers are responsible for confirming compatibility with their specific machine configuration prior to purchase.\u003c\/p\u003e\n\n\u003cp\u003eStock # 0226-556\u003c\/p\u003e","brand":"Giddings and Lewis","offers":[{"title":"Default Title","offer_id":48856921800944,"sku":"m00556","price":239.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/6648\/7280\/files\/8F9A0553-2E73-4549-BA01-E2C9891F7827.jpg?v=1771631898","url":"https:\/\/mroexchange.com\/products\/giddings-and-lewis-linear-isolator-circuit-board-501-04172-00-502-03326-00-0226-556","provider":"MRO Exchange","version":"1.0","type":"link"}