I'm trying to get a 4-1000a amp back in working order that I picked up from a SK. It appears that the SK built it based on plans by K9LKA. (Grounded Grid) It has a pole pig transformer for the HV side of things. I threw in a full wave diode bridge I had laying around for it and a new henry 7.5kv 16uF cap. I added a soft start circuit for it and a variac to allow control of the power above 120v. I'm going to take a deeper look at the grid meter tomorrow, but I haven't driven it yet. So that might not be an issue. What is a issue is the draw I'm seeing on the HV side of things. Once I apply HV, I notice the plate shows some red at idle, not keyed, and not even a radio connected. Looks to have about 140-150ma of idle current at 4500v. (No grid current shown, but that could be a meter, wiring, or other issue) And once I switch off HV, it drops like a rock on the meter. (With the tube out of circuit, my bleeders take about a minute to bleed the cap) From what I've gathered, I probably should be looking at the grid grounding? I've seen mention of adding parasitic suppression there as well? (And I had one person mention to add a resistor there instead?) I'll have a chance to play with it more tomorrow, just didn't have time today to get any further. But wanted to see what everyone suggests.