Aha, I thought they were on the board with the 74HC595s in the photo. /Martin
On Wednesday, 27 September 2017 22:28:16 UTC+2, newxito wrote: > > sorry, 74HC595 > > Am Mittwoch, 27. September 2017 22:21:24 UTC+2 schrieb newxito: >> >> There are no IC’s on the board with the 2n7000, just some resistors, >> leds, nixies and the connectors to driver, controller (led pwm) and psu. I >> replaced the 2n7000 with BC548 and 4.7K resistor (patch picture). One of >> the driver boards on the picture has two HV5622 and the other one 8 x >> 75HC595 and 64 x MPSA42 transistors. >> >> >> Am Mittwoch, 27. September 2017 21:51:31 UTC+2 schrieb Dekatron42: >>> >>> What are those IC's on the board with the 2N7000? >>> >>> /Martin >>> >>> On Tuesday, 26 September 2017 20:48:08 UTC+2, newxito wrote: >>>> >>>> I agree 100%, it must be an ESD problem, these things are really >>>> fragile, even on a breadboard circuit just touching 2 or 3 times the gate >>>> kills the 2n7000. I think I will not be able to solve the problem in a >>>> reasonable amount of time, so for now, I will patch the boards with >>>> transistors and continue with the tests. Just finished to solder one of >>>> each type of driver boards… >>>> >>>>> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/643c2fe8-87f5-4ffd-8264-956df321da73%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
