Recent content by Old Tele man

  1. Old Tele man

    Voltage across reverse biased diode

    Back to circuit characteristics: VOLTAGE is same across paralleled devices; CURRENTS are (typically) different in each paralleled path, however.
  2. Old Tele man

    Is it practical to generate all US power by solar PV?

    Just for the "record," remember that Arizona annually experiences a summertime "monsoon" (mid-July through end-September) with sudden, abrupt, dark/cloudy skies, raining "cats & dogs," at exactly the same time that A/C-units are running most. That kinda shoots the heck out of "planned" load...
  3. Old Tele man

    Detecting Current Flow in a Circuit with LEDs

    Placing Hall-effect sensors on each current leg, and monitoring their outputs on a multi-trace oscilloscope might be helpful.
  4. Old Tele man

    Power Factor Correction for a small 60W AC Induction motor

    Basically, correcting the PF of a single fractional-hp motor, within the larger picture of total home PF -- is like a raindrop affecting ocean salinity -- there are much larger PF-sources (refrigerator, A/C, fans, power company transformers, etc., etc..) in the big picture. I believe you'll...
  5. Old Tele man

    Job Skills "Unfortunately, You are not the right fit at this time"

    True, when the company is NOT truly looking for candidates but rather merely "meeting Federal/State Hiring Requirements" by posting the position (which, unfortunately happens WAY too often). My point was: turn each interview opportunity into a concurrent "information gathering" opportunity...
  6. Old Tele man

    Power Factor Correction for a small 60W AC Induction motor

    Might this article help? http://www.eaton.com/ecm/groups/public/@pub/@electrical/documents/content/sa02607001e.pdf But, also, be aware of this aspect of "home" PF-correction: http://www.nlcpr.com/Deceptions1.php
  7. Old Tele man

    Insights Measuring How Many Days Are in a Year - Comments

    ...a side-effect of our fleeting moon's slowly increasing orbital distance.
  8. Old Tele man

    Job Skills "Unfortunately, You are not the right fit at this time"

    Have you tried politely asking the interviewer "If you can, what specifically is the "fit" this position is seeking?" It won't help THIS interview, but might provide you with insight into what "hidden" aspects the company is seeking, and thus (possibly) aid you with future applications?
  9. Old Tele man

    Consequences of Being Banned on PF Forum

    "BANNED" ANALOGY -- What good is a "black hole" if things went both IN and OUT?
  10. Old Tele man

    Q: community colleges that offer baccalaureate degrees

    We weren't 'allowed' to drop anyone until after the Full-Time Student Equivalent (FTES) report period...so, the college got "credit" for everyone before the numbers "dropped" due to combined student disinterest and failing academic grade attritions happened. However, for baccalaureate degrees...
  11. Old Tele man

    Free Curve Fitting Software for 4 Parameter Equation

    Me thinks that maybe 'CurveFit Tracer' could be used to turn vacuum tube operating curves into useable mathematical equations! Has anybody tried this?
  12. Old Tele man

    What is the perveance parameter in vacuum tube triode operation?

    Just wandered into provide a link to an old, little-known, RCA book on vacuum tubes in answer to a question about triode operation equations and specifically the little-known "perveance" parameter.
  13. Old Tele man

    What determines a vacuum tube's perveance?

    There is an excellent RCA in-house-published book, ELECTRON TUBE DESIGN, 1962, with information on what affects/determines a vacuum tube's "perveance." See specifically pages 753-760: http://www.tubebooks.org/Books/Atwood/RCA 1962 Electron Tube Design.pdf
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