| My new toy »tesales.com/ccpc1090-2873-hp-662···622a.htm
No idea if everything works, but the display shows all of the characters on power-up and nothing looks burned inside. Since I didn't pay anywhere close to what the price in the ad is, I will not go bankrupt if it turns out to be uneconomical to repair. I have no way to test the IEEE-488 port, but I don't need this anyway; as long as I can program the supply from the front panel, I am good to go.
This thing is definitely a monster; I would have preferred something smaller, but, when you scrounge around at surplus stores, you take whatever they have. |
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| Update- I was able to get an old car headlight to light on both outputs, so it appears there is hope. |
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public
join:2002-01-19
Santa Clara, CA | reply to daveinpoway
said by daveinpoway:This thing is definitely a monster; I would have preferred something smaller, but, when you scrounge around at surplus stores, you take whatever they have.
Keyboard settable supplies are not a good match for r/d, since it is not easy to gently ramp up and turn down when bad things happen. |
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| There is an output disable pushbutton which will instantly turn off the voltage that is being applied to the load. You can also program in a current limit, which will (hopefully) keep the load current from exceeding a safe level during a fault condition.
I agree that a potentiometer or rotary encoder may be better, but, it is difficult/impossible to find the perfect power supply at a reasonable price in the used market, so I went with what I found. Later, if something better comes along, I can put this one up for sale on Craigslist. |
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Reviews:
 ·AT&T U-Verse
| There are many options that are reasonably priced...
»www.amazon.com/s/ref=sr_nr_i_0?r···49135011 |
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public
join:2002-01-19
Santa Clara, CA | Most of those are low current linear reg chinese crap.
Often have a relay switched ranges to keep from melting.
Anybody with basic skills should be able to construct a much better supply. |
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| Yes, few (if any) of those power supplies on Amazon are up to HP's level of quality/reliability/performance. |
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jdmm72
join:2002-02-12
Nitro, WV | reply to public
A good cutoff for power supplies is a handful of cables, yanked hard and fast. |
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