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Type: Posts; User: gar

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  1. Replies
    9$$
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    111

    150528-2103 EDT I will describe the belt drive...

    150528-2103 EDT

    I will describe the belt drive as a coupling. The stiffness of the coupling is different when comparing one belt vs two belts. Stiffer for two belts. There are two masses coupled...
  2. Thread: Well Pump Hookup

    by gar
    Replies
    9$$
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    243

    150527-2234 EDT All single phase motors are at...

    150527-2234 EDT

    All single phase motors are at least two phase for at least starting. If there were no starting winding and/or phase shifted running winding, then the only way to start the motor...
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    4$$
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    273

    150523-1113 EDT The inverse square law applies...

    150523-1113 EDT

    The inverse square law applies to an isotropic radiator. In a confined space with white reflective surfaces this is not a structure that would be close to an isotropic radiator. If...
  4. Thread: Tough cable

    by gar
    Replies
    13$$
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    615

    150520-0850 EDT I can communicate 4000 ft at...

    150520-0850 EDT

    I can communicate 4000 ft at 115 kbaud (basically 100 kHz) over CAT-5 cable, 8000 ft at 9600 baud.

    For your application I suggest looking into a radio frequency link. No wire...
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    36$$
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    965

    150519-9827 EDT One person mentioned that they...

    150519-9827 EDT

    One person mentioned that they did noi know how to install a filter. Following is a photo of the Corcom 5VR1 filter. Two input wires, two output wires, and a ground wire that is...
  6. Replies
    36$$
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    965

    150516-0952 EDT Try a Corcom 5VR1 filter...

    150516-0952 EDT

    Try a Corcom 5VR1 filter inside the fixture. This may reduce the noise going into the wiring that supplies the fixture. This wiring may become an antenna (radiation) or conduct...
  7. 150516-0906 EDT 11bgrunt: If you have a...

    150516-0906 EDT

    11bgrunt:

    If you have a stiff (meaning low impedance) 240 source, then any additional loads that are only across the 240 source have nothing to do with the strobing.

    I have...
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    7$$
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    150515-1954 EDT darekelec: Why don't you...

    150515-1954 EDT

    darekelec:

    Why don't you experiment and determine the characteristics of the 0-10 or 1-10 ciircuit?

    Apparently you are using the variable resistor to control the dimmer.
    ...
  9. Replies
    10$$
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    563

    150515-1948 EDT kired: At 123 V the PF...

    150515-1948 EDT

    kired:

    At 123 V the PF unloaded is 0.22 .

    .
  10. Replies
    10$$
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    563

    150514-211 EDT fifty60: When you ask...

    150514-211 EDT

    fifty60:

    When you ask questions that get envolved with various answers, you gradually add new information, possibly get other information from other sources, and possibly...
  11. Thread: LED Lighting ...

    by gar
    Replies
    3$$
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    171

    150513-1946 EDT 1793: At...

    150513-1946 EDT

    1793:

    At http://www.leviton.com/OA_HTML/ProductDetail.jsp?partnumber=VPE04-1LZ&section=47398 pick and open Product Specification and Data Sheet.

    Find Figure 2. This shows a...
  12. Replies
    5$$
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    140513-1201 EDT ritelec: Following is a...

    140513-1201 EDT

    ritelec:

    Following is a relatively good discussion on single phase motors from a general perespective. But it does not answer your question.

    Single phase motors are always a...
  13. Replies
    10$$
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    563

    150512-1644 eDT fifty60: In your thread...

    150512-1644 eDT

    fifty60:

    In your thread "Wetting Current/PLC Input" you never came back with any feedback on how you solved your problem, and what thinking you used to arrive at a solution.
    ...
  14. Replies
    10$$
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    563

    150512-1012 EDT fifty60: Thanks is not the...

    150512-1012 EDT

    fifty60:

    Thanks is not the kind of response I am talking about. You have a problem, ask a question, and there are various responses. The kind of response that would be useful...
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    10$$
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    563

    150511-2352 EDT You never or very seldom...

    150511-2352 EDT

    You never or very seldom provide any feedback after people provide you some answers.

    For your present question I suggest that you make measurements and answer your own question....
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    14$$
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    512

    150508-1039 EDT mityeltu: Before you get...

    150508-1039 EDT

    mityeltu:

    Before you get too excited about your full wave rectified signal look at what the valley looks like.

    Also it looks like the differentiation method won't work well...
  17. Thread: NITEL T1 LINE

    by gar
    Replies
    5$$
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    273

    150507-1000 EDT Try a high gain directional...

    150507-1000 EDT

    Try a high gain directional antenna on a mast outside.

    .
  18. Replies
    10$$
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    375

    150507-0938 EDT A three phase motor has a...

    150507-0938 EDT

    A three phase motor has a relatively constant amplitude rotating magnetic vector that drags the rotor around with little torque variation. A single phase motor has an oscillating...
  19. Replies
    14$$
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    512

    150506-1453 EDT mityeltu: I will try to...

    150506-1453 EDT

    mityeltu:

    I will try to respond later, but I don't know what later means.


    winnie:

    I believe I have the ADC-216 working. But the Radio Shack power connector I obtained is...
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    14$$
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    512

    150505-1140 EDT mityeltu: You are not...

    150505-1140 EDT

    mityeltu:

    You are not providing a clear statement of the problem.

    What is a "dso"? Apparently it is a digital scope, but I really don't know. It seems this is inadequate for...
  21. Replies
    14$$
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    512

    150504-2131 EDT mityeltu: Who do you work...

    150504-2131 EDT

    mityeltu:

    Who do you work for? Doble or someone else. Are you trying to test the Dolbe F2250, or some device or product with the F2250?

    Much more information is needed. As...
  22. Replies
    9$$
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    454

    150501-1600 EDT I did some more searching and...

    150501-1600 EDT

    I did some more searching and the following site is quite good:
    ...
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    9$$
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    454

    150501-0913 EDT keithrmatt: I don't believe...

    150501-0913 EDT

    keithrmatt:

    I don't believe you have a good understanding of how phase shift dimmers work based on your post #1.

    The following two sites may help....
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    9$$
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    454

    150429-0913 EDT See the GE "SCR Manual", 5th...

    150429-0913 EDT

    See the GE "SCR Manual", 5th edition, 1972, page 253 for a discussion about a phase shift dimmer using an RC delay and an ASBS (asymmetrical silcon bilateral switch) to trigger a...
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    150423-1300 EDT ggunn: What other thread? ...

    150423-1300 EDT

    ggunn:

    What other thread?

    In post 15 here I provided a possible way to get his measurements. Was this suggested in the other thread?

    .
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