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  • lowen's Avatar
    Yesterday, 06:14 PM
    I remember the last time year-round DST was tried, in 1974. Time changed on January 6. By October 1974 the change was reverted.
    20 replies | 186 view(s)
  • lowen's Avatar
    Yesterday, 09:51 AM
    The NEC differentiates thusly: Grounded conductor: the current-carrying conductor of a circuit that is bonded to the grounding conductor at the...
    16 replies | 211 view(s)
  • lowen's Avatar
    March 20th, 2019, 06:52 PM
    I agree with the isolation transformer idea, as that allows you to be sure about the grounded conductor (that's a narrowly-defined NEC technical term...
    16 replies | 211 view(s)
  • lowen's Avatar
    March 19th, 2019, 07:07 PM
    It depends on the UPS. The output may have a grounded conductor tap that you can use. What brand and model UPS?
    16 replies | 211 view(s)
  • lowen's Avatar
    March 19th, 2019, 11:56 AM
    The 386SX has a pin that allows an ON Circuit Emulator (ONCE; Intel's acronym) to disable the CPU without making any modifications to the board. ...
    6 replies | 203 view(s)
  • lowen's Avatar
    March 10th, 2019, 08:52 AM
    The fiber connectors look like either SMA905 OR SMA906. I have some 62.5/125 multimode jumpers with SMA905 connectors on them; matches a couple of...
    7 replies | 130 view(s)
  • lowen's Avatar
    February 25th, 2019, 05:56 AM
    I didn't know either one, but both make sense, from Tandy's point of view. The 68000 was just a better chip that Z8000, with a flat and linear 16MB...
    21 replies | 1306 view(s)
  • lowen's Avatar
    February 23rd, 2019, 06:23 PM
    Hmm, Alan, sure if I want absolute max speed on a Z80 I would stack a set of INI instructions back to back, a full sector's worth. There is no...
    155 replies | 12503 view(s)
  • lowen's Avatar
    February 23rd, 2019, 09:08 AM
    In practice programmed I/O is much slower, since most devices need a status read first. According to Rodnay Zaks' "Programming the Z80," a...
    155 replies | 12503 view(s)
  • lowen's Avatar
    February 21st, 2019, 03:04 PM
    Wow, no replies as yet? Well, I have a few questions: 1.) I know Tandy was aiming for a retail price point, thus a cost point; can you describe the...
    21 replies | 1306 view(s)
  • lowen's Avatar
    February 20th, 2019, 04:27 PM
    P112: Z182 with up to 1MB of RAM, floppy controller, serial and parallel. With the right Z182 you can run 33 MHZ or even a bit faster. Has surface...
    26 replies | 1145 view(s)
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About lowen

Basic Information

About lowen
Location:
Western North Carolina, USA
Interests:
TRS-80, other assorted vintage gear. Tube amps and transmitters. Amateur Radio
Occupation:
CIO, IT department.

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--
Bughlt: Sckmud
Shut her down Scotty, she's sucking mud again!

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