Adventures with IN-28s. I have determined that in this clock the IN-28s are operated in the following way:
The anode is connected to half wave rectified 240V AC, the cathode is grounded through a 4.7K resistor. The grid is connected to the control board through a 1M resistor with a 3.9M pulldown. I assume the grid voltage is around 160-170V The original transformer is gone so I will have to make a new one. This isn't too bad since I can make it with a 120V primary. -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/56332dda-683a-4137-bbc1-591fe5e744dc%40googlegroups.com.
