In looking for a datasheet for the 6A10 diode I came across a potentially hazardous find. One datasheet said the 6A10 was a 100 volt PIV diode, while another said it was a 1,000 volt PIV diode. So, unless I actually measure the PIV, I am not sure of what I have and must, for safety sake, assume the worst. 73, Dick, W1KSZ