Hi Dan,
Sorry to hear of this issue, of course. And thanks for the nice words. As Bill (Whart) mentioned, Jea48 (Jim) certainly merits such a compliment, especially when power-related issues are involved. Perhaps he'll see this thread and comment.
The only suggestions that occur to me at this point are:
1)If you are using the PPP in multi-wave mode, try using sine wave mode instead. Don't ask me why; just my instinct :-)
2)While under most circumstances I would strongly recommend against doing this, and I expect that others will post subsequently and say that I'm recommending an unsafe practice, in this case I think it may be reasonable to consider putting a cheater plug on the DV-60's power cord, to defeat the connection of its safety ground to the PPP. I'm envisioning either that safety ground may be the path by which an incoming power line transient manages to bypass the PPP, or surge suppression mechanisms in the PPP itself may dump the energy of an incoming power line transient onto the safety ground. From which it may find its way onto the DV-60's internal circuit ground, via whatever resistance or impedance connects circuit ground and safety ground/chassis within the DV-60, resulting in the damage.
That's about all I can think of at this point. Best,
-- Al
Sorry to hear of this issue, of course. And thanks for the nice words. As Bill (Whart) mentioned, Jea48 (Jim) certainly merits such a compliment, especially when power-related issues are involved. Perhaps he'll see this thread and comment.
The only suggestions that occur to me at this point are:
1)If you are using the PPP in multi-wave mode, try using sine wave mode instead. Don't ask me why; just my instinct :-)
2)While under most circumstances I would strongly recommend against doing this, and I expect that others will post subsequently and say that I'm recommending an unsafe practice, in this case I think it may be reasonable to consider putting a cheater plug on the DV-60's power cord, to defeat the connection of its safety ground to the PPP. I'm envisioning either that safety ground may be the path by which an incoming power line transient manages to bypass the PPP, or surge suppression mechanisms in the PPP itself may dump the energy of an incoming power line transient onto the safety ground. From which it may find its way onto the DV-60's internal circuit ground, via whatever resistance or impedance connects circuit ground and safety ground/chassis within the DV-60, resulting in the damage.
That's about all I can think of at this point. Best,
-- Al