It looks like I will get a couple of new lamps in the near future for my two ORC X-500-14 Gunfire Simulators. In the mean time, I am proactively replacing all the power diodes, encased resistors and a bunch of ceramic disk capacitors - items that can fail just sitting over time. My question is, in the pic, there is a 400 Volt, 2 uF Aerovox axial/tubular capacitor sitting above the big orange square power supply. You can make out the "VOX" printing on it. Siliconed to it above are 3 ceramic disk and one axial orange colored capacitors. All of these are hooked in parallel and connect back to insulated terminal pins. There is also what I think is a "drain" resistor wired across the caps. It's kind of a wiring mess. I am wondering why I could not just aggregate the Capacitance of all caps and buy one axial cap of the summed capacitance and achieve the same result? The Aerovox cap is of the "metalized paper" type as I found in some very old PDF data sheets.
Added: After removing some of the black silicone, I can see that the ceramic disk caps all have different Voltage ratings, some are NP0 dielectric, some are Z5U dielectric so it's probably best to replace as originally configured. One cap I can't find:
1D
NP0
1KV
I know lines 2 and 3 but can find nothing on 1D which must designate capacitance. Any thoughts?
Added: After reading maybe 40 sites of Cap code deciphering, I'm finding only 1 site that gives a 2-digit code definition. It would appear to be a 1 Picofarad cap with a "D" tolerance - .5pF. Happy to hear others thoughts.
Added: After removing some of the black silicone, I can see that the ceramic disk caps all have different Voltage ratings, some are NP0 dielectric, some are Z5U dielectric so it's probably best to replace as originally configured. One cap I can't find:
1D
NP0
1KV
I know lines 2 and 3 but can find nothing on 1D which must designate capacitance. Any thoughts?
Added: After reading maybe 40 sites of Cap code deciphering, I'm finding only 1 site that gives a 2-digit code definition. It would appear to be a 1 Picofarad cap with a "D" tolerance - .5pF. Happy to hear others thoughts.
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