| Electronics > Repair |
| Fluke 343A repair |
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| Vertamps:
Hello, i had made these Fluke 343A high voltage capacitor mod boards (a few months ago). Iv intended to use solid copper wire to solder the mod capacitor to the the Fluke PCB, either bend the leads or use cheap spacers i bought off Amazon. I will solder one in this week to show you it installed and see if i need a minor tweak to the pcb. I did think of adding holes for a few plastic snap in spacers as there is room on the board, standing off is doable a few ways. I can put the Gerber files up on my drop box so you can order your own, or PM and i can email but wait till my install test. I paid $8.16 total for 20 of these boards shipped to me. |
| bastl_r:
Hi I am very interestet on the gerberfiles. Can you send me a link for Download? Thank you |
| daisizhou:
--- Quote from: Vertamps on June 25, 2024, 04:52:23 am ---Hello, i had made these Fluke 343A high voltage capacitor mod boards (a few months ago). Iv intended to use solid copper wire to solder the mod capacitor to the the Fluke PCB, either bend the leads or use cheap spacers i bought off Amazon. I will solder one in this week to show you it installed and see if i need a minor tweak to the pcb. I did think of adding holes for a few plastic snap in spacers as there is room on the board, standing off is doable a few ways. I can put the Gerber files up on my drop box so you can order your own, or PM and i can email but wait till my install test. I paid $8.16 total for 20 of these boards shipped to me. --- End quote --- You choose to replace the original capacitor with a smaller capacitor. Although their capacitance and withstand voltage meet the requirements, large capacitors have high power, while small capacitors usually have low power. In other words, the redundancy performance has become weaker |
| Vertamps:
--- Quote from: daisizhou on June 25, 2024, 07:12:51 am ---You choose to replace the original capacitor with a smaller capacitor. Although their capacitance and withstand voltage meet the requirements, large capacitors have high power, while small capacitors usually have low power. In other words, the redundancy performance has become weaker --- End quote --- Well, i suppose if you wanted to pick out 3 skinny/tall capacitors you could parallel them for lower ESR than the original capacitor and fit them on the pcb size. But I went with a single United Chemi-Con and assuming it will be ok. With 3 filter caps i would add thermal relief on pads for quicker install. I think my initial design will have good contact area with the capacitor leads. |
| Vertamps:
--- Quote from: bastl_r on June 25, 2024, 05:31:35 am ---Hi I am very interestet on the gerberfiles. Can you send me a link for Download? Thank you --- End quote --- Hello, let me install one first so im not sending out files with an issue. Ill try to tonight after work (sorry wait one more day ;) ). Worse case my spacing measurements are off by a mm. Mating hole size board to board are 1.2mm to fit 1mm/18 gauge solid core copper wire. |
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