Power Supply.

Discussion in 'General Electronics Chat' started by CIVEDM, Aug 2, 2014.

  1. CIVEDM

    Thread Starter New Member

    Jan 28, 2014
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    Ugh,.... Im posting again about purchasing a power supply. Im stuck between buying two of these power supplies that have the specs im looking for in terms of voltage and current. They also have coarse and fine adjustment knobs. I would pay about 140 to 190 for the two of them. The current precision is to the hundredths. Then theres this BK Precision thats uber nice with fine adjustments and it has current precision to the thousandths. But it only has one channel. And its 365. What do you think? I always think long term. I might not need something super precise now but i might later. I might need it down the road. I might not need suoer precise at all. Might not need dual channels but i night later down the road. I hate buying stuff for right now. I want for now and later. What do you think?
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,446
    3,362
    You will not need super precise down the road but you will need dual down the road.

    Hope that answers your dilemma.
     
  3. CIVEDM

    Thread Starter New Member

    Jan 28, 2014
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    Is there a difference between getting two singles as oppose to a dual channel? Im thinking no but, ultimately i dont know.
     
  4. MrChips

    Moderator

    Oct 2, 2009
    12,446
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    If one supply goes bad you still have a working one which can also help in fixing the bad one.
     
  5. CIVEDM

    Thread Starter New Member

    Jan 28, 2014
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    0
    Good point so i should get two supplies. Kind of the same thing as buying an all in one printer scanner fax as oppose to buying them all separately.
     
  6. Lestraveled

    Well-Known Member

    May 19, 2014
    1,957
    1,215
    Linear bench power supplies are generally long life devices and are easy to repair, so I suggest buying used. I have a dual Harrison Labs supply, that I bought used in 1980 and I have never had to open the case.
     
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