Pyramid 10 Amp Power Supply (068888701655) Power Supply - Answered Questions & Fixed issues

I would check the resistor going to the voltage regulator and see if it either has a bad solder joint, or is shorted.

Pyramid 10 Amp... | Answered on Oct 16, 2013 | 68 views

Yes, you can use this as a battery charger, but you would have to manually disconnect the power supply every so often and check the voltage of the battery to see how charged it was. Once the battery was fully charged, you would need to disconnect it, so it would not become damaged by overcharging.

Pyramid 10 Amp... | Answered on May 19, 2011 | 87 views

Hi jjmn2rcp,
Current is defined as voltage divided by resistance. By adding a load to the amp, you decrease the current. Normally the amp should compensate for this, but if the load is to high, the amp will shut down to prevent damage, which is likely what's happening in your case. The amp is rated for 13.8V DC at 10 amps, so make sure you don't have to much connected to the amp. You can find a manual and schematic for the amp at
Hope that helps!

Pyramid 10 Amp... | Answered on Mar 07, 2011 | 192 views

Usually, this indicates an overload condition. I have a Pyramid 35 amp supply that has no green light but uit does have a red light and an irritating little beeper that the instruction book says is activiated when power draw approaches 90% of rated output. (Why not call it a 30 amp supply if you can't use the full 35???) Enough editorializing. You don't say if the supply actually works, just that the light changes color. If it doesn't work at all, I would start with checking the diode bridge for a blown or leaking diode. If one is bad, it can output enough to drive an LED but fail anything else. If these are good, check the filter capacitor. If this is bad, the hum could concievably confuse the regulator circuit. Next, I would check what ever voltage regulator it has in it. I can't comment on specifics as there are many schemes that can be used. My unit, for example, is like a mouse driving an elephant. It has a small 723 regulator IC, (Aprox. 100ma output), controling 4 large TO-3 pass transistors driven by a 36 volt 40 amp transformer to boil it all down to an adjustable 12 to 15 volts.
The bottom line is without knowing if the unit is puting out or not and not having it in my hand to look at, this is the best I can do. I hope it helps.
Good luck.

Pyramid 10 Amp... | Answered on Feb 07, 2011 | 242 views

Unplug the PS-15KX 120V AC cord !! Then take cover off. DO NOT plug the AC cord in unless you are used to working around a lethal voltage and current !!!!!!!!!!

If you can use a Multimeter, then measure resistance across each pair of the 3 leads of the output transistors. You will probably find fractions of an ohm across a pair of leads. One or both may be shorted. NOTE: Do not ever measure resistance in a powered up circuit, kiss meter bye-bye and maybe burn you too.

By putting more robust transistors in this supply, you may not gain much reliability. The supply is rated at a continuous current draw, which is less than the intermittent current they advertise. Read the spec's of any power supply you get and look for continuous current ability.

There are several better transistors that will substitute for the 2N3055. You will need to look at a transistor substitution book and check specs. The internet is great for this. I used to use all kinds of data books, and still have them! But looking up info on-line is nice. Motorola has some that will fit and have higher current and voltage ratings,

Get someone who is a ham or geek if you aren't sure about sticking your fingers in the power supply.

Be Careful, Work Safe, it is a factor of longer life.

Pyramid 10 Amp... | Answered on Nov 17, 2008 | 507 views

nothing in this rant for fixya site to answer

Pyramid... | Answered on Jul 10, 2018 | 20 views

Well, look at the pyramid. There are more at the bottom... a lot more less powerful that hat to contribute and pay all to the owners of the land and we're allowed only to survive. In some cases, not even survive, slaves would be worked to ***** in many cases, in some civilizations under the farmers and artisans were thousands more slaves making the bottom of that pyramid wider, allowing for even more riches at the top.

Pyramid... | Answered on Feb 25, 2017 | 35 views

The volume is one third the product of the area of the base times the height or (1/3)B*h

Pyramid... | Answered on Apr 01, 2016 | 191 views

You probably have a switching power supply which requires a load connected to it before it is turned on.

Pyramid... | Answered on Jul 29, 2015 | 824 views


Computers &... | Answered 1 hour ago | 20 views

go ahead dont need fixya approval

Computers &... | Answered 1 hour ago | 19 views

fixya doesnt sell products

Computers &... | Answered 2 hours ago | 28 views

Their website explains how to csncel your account.

Computers &... | Answered 5 hours ago | 29 views

This site will describe how to do it.

Computers &... | Answered 5 hours ago | 23 views

Two possibilities. 1. LED light is out/non functioning. 2. Charger is "shot". Not worth fixing .. just purchase a new one.

Computers &... | Answered 6 hours ago | 24 views


Health & Beauty | Answered 7 hours ago | 26 views

no PC strated, no OS stated
no application stated, just the wild and unknown, "compose"
(I use Thunderbird to compose email)

I guess you are using email, (not mail) but email online or using email client. application? outlook or? 100s of others>?
no email service provider stated, is this or any of 1000 others?> I can't guess.
if using a browser to see on line email first tell the helper what browsers it is after all IE6, to 10 are now banned on line, and e11 on a few.
sounds to me (wild wild guessing) your PC is infected.
or the browser is all messed up, or banned, as XP is.
try running free CCleaner, with the browsers all closed.
the try again.

Computers &... | Answered 8 hours ago | 22 views

why not ask them after all we are no them.
we can;'t dicate to them. ever.

learn to address things directly to

Computers &... | Answered 8 hours ago | 25 views

sadly this is only a repair forum and have no way of knowing what you want us to do

Computers &... | Answered 10 hours ago | 23 views

Kia Jam worked for James Cameron's visual effects company Digital Domain before working as an independent Hollywood film producer. He was involved in the production of more than 60 TV advertisements, most notable of them being the Clio Award-winning Jeep commercial and Grammy Award-winning music video for Love is Strong by Rolling Stones which was directed by David Fincher. Mr. Jam also served as a consultant for organizations like Relativity Media, Xinhua Media Entertainment, and Miramax Films, where along with his partners he was instrumental in the $660m buying of Miramax Films from the Walt Disney Company for its present owners.

Computers &... | Answered 11 hours ago | 16 views

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