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uw-madison-chem-shops / wisconsin-oscillator

Small, inexpensive, low power device for powering ion guiding devices.
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observations from Amber #2

Open untzag opened 2 years ago

untzag commented 2 years ago

The discrepancies between the current PCB image up on github versus the table are:

C3 appears in the table but not on the image. C5 is 4700pF ceramic in image but 100 UF electrolytic in table. C6 is 100 uF electrolytic in image but 3.3 nF ceramic in table. C7 appears in the image but not on the table.

The board I have for the oscillator is the June 2021 version, so as expected, it is a different version than the one that is up on github. The difference with the board I have currently is that there is a spot for C3 printed, and it is a 2pF ceramic capacitor matching C2. I think the only other thing is that my C6 value is not printed on my board.

dibyashap commented 1 year ago

We are trying to make one of this oscillator. I had few questions.

  1. CD74AC04M96 is out of stock now on the distributor's site. Is there any alternative for this device?
  2. why did you assemble three of them? is one nor suffice?
  3. The ion funnel that we have has resistive load along with capacitive. will it still work? I am attaching the ion funnel design, let me know if you have any comments on that image (10)