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  • deanbilling's Avatar
    January 14th, 2019, 08:59 AM
    deanbilling replied to a thread Leaking Caps in H7821 PSU in DEC
    The "impedance" of an 1800 uf capacitor is what the math formula says it is at a given frequency, more than likely 120 Hz. in a power supply:...
    5 replies | 217 view(s)
  • deanbilling's Avatar
    January 13th, 2019, 05:13 PM
    deanbilling replied to a thread Leaking Caps in H7821 PSU in DEC
    Using the Mouser website, put in 1800uf capacitor and pick the closest look alike, at least 25V and anything 1800 uf or more. Back in those days, ESR...
    5 replies | 217 view(s)
  • deanbilling's Avatar
    December 28th, 2018, 11:28 PM
    There is an old thread about MDM on CD-ROM. Wonder if anyone has an .iso image they could make available or would burn a copy of the CD if I sent...
    0 replies | 196 view(s)
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About deanbilling

Basic Information

About deanbilling
Biography:
Retired DECsystem-20 and VAX administrator from many years ago.
Location:
Sisters, OR
Interests:
Flying and vintage DEC computers

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January 18th, 2019 08:02 AM
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December 21st, 2018
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