ORIGINAL MESSAGE: On Thu, 17 Jan 2013 20:59:33 -0500 (EST), K5GW wrote: >The only downside that comes to mind is that the added diode could be the >one that fails due to an arc REPLY: A properly sized diode should never fail. A type 6A10 has a surge rating of 400 amps. Should be enough. Bill, W6WRT