Rick, I bought welding machine rectifier diodes from mouser. I don't remember the price. The wire and connectors and box cost more than the diodes.
As an alternative to GIs you can just turn off all the DC loads and disconnect the shore power. Plug in periodically to charge if needed or get a small solar panel. The only zincs I have are on the prop and shaft. I have a "shaft saver" from PYI which mechanically cushions the shaft and transmission. Coincidentally it also electically isolates the shaft from the engine. I am mixed as to whether this is a good or bad practice but I do believe it is enough to save my zincs. Another zinc I forgot about is the anode in the water heater. It cannot be isolated so it is probably being eaten away as we speak. I also wonder if the metals in the engine heat exchanger would benefit from the overall galvanic protection of the shaft zincs. It is a 3HM35F "F" for fresh water cooled and thus not built with any zincs. The metals exposed to saltwater are copper nickle to minimize corrosion but I still kinda feel like more protection wouldn't hurt. Thoughts? Josh
_______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
