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Capacitor Discharge Welder Energy Storage Module PCB [29103223] The ESM PCB for the CD Welder. 8-14 are needed per Welder (see the article for details). This is also available in a partial kit of parts. Double-sided PCB with plated through holes, solder mask and silkscreen overlay. 150 x 42.5mm. Cat No SC6273. Price: AUD $3.50 1  Add to trolley In stock: yes (31 available). Estimated dispatch time: 1-3 days Related to: Project: Capacitor Discharge Welder, part one (March 2022 [print issue] [online issue]) Project: Capacitor Discharge Welder, Pt2 (April 2022 [print issue] [online issue]) Other items relevant to these projects: Capacitor Discharge Welder Power Supply PCB [29103221] ($5.00) Add to trolley Capacitor Discharge Welder Control PCB [29103222] ($5.00) Add to trolley Hard-to-get parts & PCB for the Capacitor Discharge Welder Power Supply ($25.00) Add to trolley Validation spreadsheets and updated drilling diagram for the CD Spot Welder (Free) Add to trolley Capacitor Discharge Welder PCB patterns (PDF download) [29103221-3] (Free) Add to trolley