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Challenger 1983

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    68k, PPC, vintage PC’s, Space, Cars, modern and vintage electronics

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  1. I am trying to figure out what these coils are, surely we could measure certain metrics of them and find a match for them
  2. Is the 270c considered rare?, I swear I have seen more 270s than any other duo, but I guess all duos are rare anyway
  3. You would be surprised, the very first Mac I ever posted about was a Classic with severe battery acid/rust that looked very similar to that above, i removed the rist with vinegar and painted the frame, still plenty of good metal under the rust
  4. Definitely! it would be nice to have a video resource for recapping, I usually pick the smallest cap with the correct values when working with PowerBooks, and I make sure to clean and flux the board before applying the new caps, it works every time for me
  5. I am very excited for this, it seems like an affordable solution to failing SCSI drives
  6. I have a spare 280 board to recap next so I might try surface mounts all around with that board
  7. They actually fit amazingly, there's more room with them than the original caps which was surprising.
  8. So I managed to get both Duos recappedafter ordering all the parts from Digikey For anyone who is recapping a 2300c, The smaller capacitors are 33uf 35v And here is the patient after surgery
  9. I think that is way way too high, however when I have my 2300 apart again I will try and find the part number of the LCD for you, maybe other laptops used that panel?
  10. Do you have a dock?, if so try that and see if an external keyboard works, I would like to say that bad caps would cause this but you might want to dig out a multimeter and start testing the fuses on the logic board as well as other components for continuity. First step is probably to get that board recapped though
  11. Will a higher voltage cap affect it at all?, if not I’ll order a set right away
  12. Will a higher voltage cap affect it at all?, if not I’ll order a set right away
  13. So I finished recapping the logic board of the 270c, the only issue I have now is those two unknown capacitors on the 2300c logic board, is there any way to figure out what they are?
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