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Search: Posts Made By: kc8adu
Forum: Troubleshooting Power Supplies and Power Supply Design 02-21-2019, 12:22 AM
Replies: 15
Views: 331
Posted By kc8adu
Re: X-Force 200 "Power Supply"

more nasty shit for childrens band.
meant to power a spurious and harmonics generator.
aka splatterbox amplifier.
x-farce!
Forum: General Computer Discussion 01-22-2019, 01:38 PM
Replies: 37
Views: 2,899
Posted By kc8adu
Re: Badcaps.net Origin & Roots - Topcat's VP6 Thread!

I just did another.
It's for a weird sco unix based glass business box.
Forum: General Electronics Technical Discussion 12-31-2018, 09:06 AM
Replies: 56
Views: 937
Posted By kc8adu
Re: DIY Backup with sealed lead acid battery

sure.
since the cycle count over its float life is low it will be fine.
works fine for most ups use too.
lifespan determined by its float life.
if its a ca-ca its water use is low.
other types...
Forum: General Computer Discussion 12-28-2018, 06:15 AM
Replies: 31
Views: 669
Posted By kc8adu
Re: Topcat's Weird Pentium Pro Builds

i have 2 of those dual ppro boards rat-holed.
had 3 but a client lost a server to lightning and i used one to revive it.
having old hardware saved back=WIN!
Forum: General Computer Discussion 12-28-2018, 06:00 AM
Replies: 31
Views: 669
Posted By kc8adu
Re: Topcat's Weird Pentium Pro Builds

i guess i have been lucky.
worst ones have been foreign hotel/motel owners.
every stinkin one of them is an ungrateful cheap SOB.
had one who went off the deep end when i offered to program his...
Forum: Troubleshooting Game Consoles & Other Weird Devices 12-28-2018, 05:06 AM
Replies: 7
Views: 359
Posted By kc8adu
Re: Saitek Corona electronic chess computer repair

too bad checksum not on eproms so you can verify.
maybe someone can dump theirs for you .
or is the unit that rare?
i have a few chess computers in my collection but dont recall one like that....
Forum: Troubleshooting Power Supplies and Power Supply Design 12-27-2018, 06:08 AM
Replies: 11
Views: 309
Posted By kc8adu
Re: Endurance testing of overbatteried UPSes?

18v= 3 golf cart batteries.
super runtime.
Forum: Troubleshooting Power Supplies and Power Supply Design 12-16-2018, 07:58 AM
Replies: 11
Views: 309
Posted By kc8adu
Re: Endurance testing of overbatteried UPSes?

i have a bunch in use on a solar bank.
the rules are.
1. old metal apc or best power. old rack mount metal heavy units of other brands can be good too.

2. added fan that comes on in inverter...
Forum: General Computer Discussion 11-25-2018, 11:50 PM
Replies: 13
Views: 433
Posted By kc8adu
Re: Hard drive wont spin up unless connected by usb

probably set for power up in standby.
several utils out there to remove it.
Forum: General Capacitor Questions & Issues 11-25-2018, 08:47 AM
Replies: 19
Views: 862
Posted By kc8adu
Re: Digikey sold me caps that are over 4 years old

i would be much more concerned about the bleeder resistors in that acom rather than a few years old caps.
they drift due to heat.
and when one opens you start hearing snapping as the cap it is...
Forum: Troubleshooting Computer Displays 10-14-2018, 03:12 PM
Replies: 133
Views: 2,420
Posted By kc8adu
Re: Viglen CRT monitor intermittent jumping

+1
also noticed it has panasonic caps and crt.
lower probability of dead caps.
looks like the mfr tried to make a decent unit.
add to the above list of stuff to resolder anything that runs hot....
Forum: Troubleshooting Power Supplies and Power Supply Design 10-11-2018, 05:48 AM
Replies: 27
Views: 1,131
Posted By kc8adu
Re: The Cheapest ATX Power Supply on Amazon Prime, How bad can it be?

a $15 power supply thats not a steaming pile.
now label it properly and its actually a good one for the average joes pc replacement market.
now to find the real world load death point ....
Forum: General Electronics Technical Discussion 10-08-2018, 09:31 AM
Replies: 31
Views: 1,118
Posted By kc8adu
Re: "overvolting" transmitters for more power

what model is this?
many older ht's had high power options which were higher voltage packs.
you had say a 7.2v pack that ran at 2w or a 12v that ran around 5w.
i have an old htx-202 with a custom...
Forum: General Computer Discussion 10-08-2018, 08:04 AM
Replies: 35
Views: 1,125
Posted By kc8adu
Re: Supermicro P6DGU Retro Build

btw i saw several of those boards "back in the day"
with that vrm chip killed by slotket hacks gone wrong.
i think i still have one in its original box complete with its bulging "nrsy" craps.
its...
Forum: General Computer Discussion 10-08-2018, 07:26 AM
Replies: 26
Views: 679
Posted By kc8adu
Re: more win10 fuckings

super easy to back that up.
no excuse for not doing it.
if its not a bad windows update it will be a failed drive.
something WILL bite you in the ass someday.
Forum: General Computer Discussion 10-08-2018, 07:22 AM
Replies: 26
Views: 679
Posted By kc8adu
Re: more win10 fuckings

+1000!
i know someone right now who wrote stuff to dvd-r years ago and now finds half of them unreadable.
thats hundreds of disks.
fortunately its just a porn collection.
i only use them for...
Forum: Troubleshooting Power Supplies and Power Supply Design 08-14-2018, 10:54 PM
Replies: 38
Views: 778
Posted By kc8adu
Re: UPS beeping continuously

replace the caps near the heatsink in the center.
it runs hot and probably baked the caps dry.
Forum: Troubleshooting Power Supplies and Power Supply Design 08-12-2018, 04:18 PM
Replies: 14
Views: 337
Posted By kc8adu
Re: LED Shop light - EMI problem - Chip info needed

that would be my first move.
its a buck alright.
Forum: Troubleshooting TVs and Video Sources 07-25-2018, 03:52 PM
Replies: 469
Views: 86,723
Posted By kc8adu
Re: Eeprom dump thread!

emerson lf501em4 virgin dump
Forum: Troubleshooting Power Supplies and Power Supply Design 07-20-2018, 07:26 AM
Replies: 36
Views: 919
Posted By kc8adu
Re: Ham/CB/other transmitter radios... linear vs switching PSU?

cheap smps always litter the hf spectrum with their wandering birdies.
a surprise is that an xbox 360 supply does well for running 100w hf rigs.
they dont like cap charging inrush so connect then...
Forum: Troubleshooting Game Consoles & Other Weird Devices 07-20-2018, 07:03 AM
Replies: 26
Views: 773
Posted By kc8adu
Re: Belcom LS120l radio (crystal filter)

got a pic of the whole board?
if this is an old uniden board it is easy to hack it for 10m
Forum: Troubleshooting TVs and Video Sources 07-07-2018, 04:52 PM
Replies: 45
Views: 1,073
Posted By kc8adu
Re: Please Help! My Magnavox 50ME314V/F7 Beeping From Power Board

probably shorted secondary diodes or protection zener.
very common.
Forum: Troubleshooting TVs and Video Sources 07-07-2018, 04:15 PM
Replies: 23
Views: 752
Posted By kc8adu
Re: Bright leds LG tv

is the phosphor area of your replacement leds (yellow stuff) round or square?
i found that the ones with a square dont spread into the tir lens correctly and you get hotspots.
Forum: General Computer Discussion 06-26-2018, 06:44 PM
Replies: 3,623
Views: 596,556
Posted By kc8adu
Re: best cheap/free scores 1.1

what do you need? i never know whats coming in.
if i know i can holler if i get it.
i am loaded up on kt7 but i will eventually use em up.
old isa stuff is always useful to me.
esp baby at 386.
Forum: General Computer Discussion 06-24-2018, 09:18 AM
Replies: 23
Views: 1,454
Posted By kc8adu
Re: Corsair K70 RGB dead

you can wash this keyboard without damage.
i have done one 3 times for an idiot who dumped soda in his.
he will either learn or go broke having me clean it.
never seen coffee grounds in a keyboard...
Showing results 1 to 25 of 500

 
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