On Sat, 03 May 2008 08:58:58 +0930, Matthew Smith <[EMAIL PROTECTED]> wrote:
>I am building two GPS-driven devices, an NTP server based on an ancient
>single board computer and a Nixie clock. Our power here is not what one
>might call reliable - we are stuck on a spur of a very long 19kV, singl
Here are my 2 favorite power supplies.
http://www.ko4bb.com/Test_Equipment/Power_Supplies.png
The one on the left is a 30V/3A supply. The current limit is adjustable with
a 10 turns pot, so it can be precisely set. I only use 3 turns of the 10
turns pot, so that one turn is one A, resolution is
At 06:14 PM 5/2/2008, John Ackermann N8UR wrote:
>I'm almost embarrassed to admit this, but I'm partial to the old
>HP/Harrison 6200B supplies. They do 0-40 volts at .75A, or 0-20 volts
I'm not embarrassed to admit that I love my 6200B. I took it in to
work so that I could use it daily. I do
Quoth Neon John at 2008-05-03 08:16...
> Set each one to 6 volts, hook 'em in series and use 'em to run big 12 volt
> loads. I ran a homemade true uninterruptible power supply for years using
> that lashup.
OK, whilst we're deviating from time a little, I would like to put a
time and power supp
Useful if you need to check integrity of high current crimped joints,
connectors etc- the supply is bound to be a switcher, so if you can
figure out how to tweak the voltage over a goodly range with existing
ccty,, then it's a done deal- otherwise you may need to build an
external series regula
> From: Patrick <[EMAIL PROTECTED]>
>
>> Hi Everyone
>>
>> I have been using a power supply from an old computer for my bench set
>> up. I am finally going to break down and purchase a proper variable
>> power supply. One channel ought to do for me and I don't need a
>> programmable one.
>>
On Fri, 02 May 2008 22:24:11 +, [EMAIL PROTECTED] wrote:
>What would one use 5Vdc @ 100A supplies for these days? I found 2 HP units in
>the garage last weekend.
Set each one to 6 volts, hook 'em in series and use 'em to run big 12 volt
loads. I ran a homemade true uninterruptible power s
I have a Kikusui PAR80A that I've become attached to. 0-80Vdc @1A, 0-8Vdc @10A
with 1mA resolution in a small but heavy box. Single output, but I have other
PSs if I need more.
What would one use 5Vdc @ 100A supplies for these days? I found 2 HP units in
the garage last weekend.
-Dave
-
Hi;
I bought a number of these for work and we've been very pleased with
them:
The GP1305TP version. One fixed +5, and two variable (but they can
be locked for eg: +/- 15) outputs.
> http://www.testequipmentdepot.com/ezdigital/gp1305.htm
Tom Frank, KA2CDK
___
Not me, I have too many power supplies now. But,
As they have remote voltage sensing and you need a panel anyway why not connect
long cables to put them under the table or where the noise is less of a
concern. As a plus you could have more space where you need it and the
flexibility to have a m
Hi Brooke and others!
Have a 6624A and a 6622A. Have yet to arrange a good front panel for
their outputs.
The thing that bothers me is the rather large amount of noise they
generate. The fan is LOUD compared to my other instruments.
Anyone done a safe conversion on the fan solution to these nic
Hi Bert:
Thanks for your description of the 6632A. I didn't realize they could sink
current. There are three 100W supplies in this family:
6632A 20V 5A
6633A 50V 2A
6634A 100V 1A
I have the 50V model on the way, much better for 28 volt equipment.
The load capacity is not as high as the Ameri
Hello Everyone.
I also own an HP 6632A DC supply. This is a great beast. Its sink capability is
just great to test other power supplies or discharge NiCads. I have a more
powerful DC electronic load, but I almost never use it. Its only drawback is
its size - rackmount - which makes it a bit lar
In message <[EMAIL PROTECTED]>, "Ulrich Bangert" writes:
>Patrick,
>
>since I own it I am in love with my HP6632A power supply.
I can recommend the HP 6626A as well, it has four outputs (2x25W, 2x50W)
and each output has 2x2 ranges for current and voltage.
You need to make your own cabling for t
Hal Murray wrote:
> Why not?
>
> Diesel-electric locomotives do electrical conversions because it's more
> efficient than mechanical gears.
>
> Some high voltage transmission lines are DC. The conversion sites on each
> end must be interesting.
>
Especially when they use mercury arc rectifier
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