In message <1387726122.76180.YahooMailNeo@...>, dated Sun, 22 Dec 2013, kim nielsen <dkkiboni@...> writes:
Use UF4007(SF4007), they are 1A, 1000V, 75nS Trr and cheap. 1n4148 have only 75volt reveres voltage.
10pcs. in series gives 10KV. I would use 11 to have som margen.
Even so, I would put 1 meg resistors **rated for 1000 V at least** across each diode. Vishay VR37 type, for example.
--
OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
Nondum ex silvis sumus
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
