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  • Witchy's Avatar
    April 12th, 2017, 03:45 PM
    Witchy replied to a thread Astec AC9231 PSU in Other
    Replying to myself here, but I found a small mention of this PSU in the Apple Schematic Guide for Astec supplies from '82 which said the separate...
    3 replies | 134 view(s)
  • Witchy's Avatar
    April 12th, 2017, 08:15 AM
    Witchy replied to a thread Astec AC9231 PSU in Other
    Yes indeed, this required power sequence is why I think the phone system I'm powering is locking up immediately on power up. The AC9231 seems to be...
    3 replies | 134 view(s)
  • Witchy's Avatar
    April 11th, 2017, 02:22 AM
    Witchy started a thread Astec AC9231 PSU in Other
    Hi folks, I bought this as a standby for an AC8151 since it puts out +5@6a, +12@2.5A as well as separate +-5 and +-12 rails so handy for anything...
    3 replies | 134 view(s)
  • Witchy's Avatar
    March 27th, 2017, 04:03 PM
    Going to bump this since I now have a 100x probe. The Service Guide says I need an isolating transformer (500VA) and optionally a Variac. I have a...
    3 replies | 473 view(s)
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About Witchy

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About Witchy
Biography:
Exiled northerner, owner of the Binary Dinosaurs Computer Museum
Location:
Flatlands, UK

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www.binarydinosaurs.co.uk - UK home computer history
Where RIFA capacitors come to die
facebook.com/binarydinosaurs

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