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Topic: 5155 display problems, potentiometers probably
rv

Replies: 6
Views: 2074

PostForum: IBM PC/XT & AT Webforum   Posted: Tue Aug 27, 2019 12:07 am   Subject: 5155 display problems, potentiometers probably
well, eventually i will probably replace them.

but for now this'll do, I can read the screen for the moment

this old thing is riddled with problems, which isn't surprising considering it's age. ...
Topic: 5155 display problems, potentiometers probably
rv

Replies: 6
Views: 2074

PostForum: IBM PC/XT & AT Webforum   Posted: Mon Aug 26, 2019 6:09 pm   Subject: 5155 display problems, potentiometers probably
ok, a little update.

after trying to measure these things and receiving unreliable results
I did find someone in a forum somewhere say 100kohm but he was talking about the 5151 monitor.

at any ...
Topic: 5155 display problems, potentiometers probably
rv

Replies: 6
Views: 2074

PostForum: IBM PC/XT & AT Webforum   Posted: Fri Aug 23, 2019 7:17 am   Subject: 5155 display problems, potentiometers probably
I have been there and while there is significant amount of useful information there I have yet to find this.

however I have determined that the brightness pot is mostly okay.
I had thought both we ...
Topic: 5155 display problems, potentiometers probably
rv

Replies: 6
Views: 2074

PostForum: IBM PC/XT & AT Webforum   Posted: Tue Aug 20, 2019 5:07 pm   Subject: 5155 display problems, potentiometers probably
hi there

I got myself this 5155 portable PC to mess with.

it looks as if someone upgraded it steadily through the 80's and even had a small (for an mfm type) hard drive screwed on a control boar ...
Topic: Compaq SLT/286 Power supply
rv

Replies: 2
Views: 4095

PostForum: IBM PC/XT & AT Webforum   Posted: Thu Apr 28, 2016 12:49 pm   Subject: Compaq SLT/286 Power supply
Well... the stuff is sold now.
Hope you were the one to get it
Topic: Compaq SLT/286 Power supply
rv

Replies: 2
Views: 4095

PostForum: IBM PC/XT & AT Webforum   Posted: Mon Apr 25, 2016 11:27 pm   Subject: Compaq SLT/286 Power supply
well...
i did stumble upon an auction on the german ebay that would relieve you of a lot of headache should you win it.

http://www.ebay.com/itm/Compaq-Computer-Zubehorkonvolut-Historische-Computer ...
Topic: A compaq portable III 286
rv

Replies: 2
Views: 4088

PostForum: IBM PC/XT & AT Webforum   Posted: Fri Jan 08, 2016 9:08 pm   Subject: A compaq portable III 286
That would certainly make things easier for me,
If you can spare it i'll take it.
We'll see if it works
Topic: A compaq portable III 286
rv

Replies: 2
Views: 4088

PostForum: IBM PC/XT & AT Webforum   Posted: Wed Jan 06, 2016 2:34 pm   Subject: A compaq portable III 286
I recently got my hands on one of those and can't wait to look at some pixels on a red gas plasma screen.
But there's a problem. Aside from not having it in my hands yet i'm told that it's missing it ...
Topic: Electricity
rv

Replies: 18
Views: 11797

PostForum: Off-Topic Discussions   Posted: Fri May 15, 2009 12:53 pm   Subject: Electricity
In nyc and other places that adapted electricity early,. some places only had dc power.
on the early 1950's radios and tv sets were "transformerless" if intended for use in these areas.

...
Topic: Electricity
rv

Replies: 18
Views: 11797

PostForum: Off-Topic Discussions   Posted: Fri May 08, 2009 1:02 pm   Subject: Electricity
i went to two types of buildings... first i visited a concrete block which had half been demolished and all that was left were six bachelor apartments (and four joint bathrooms) so any heavy duty plug ...
Topic: Electricity
rv

Replies: 18
Views: 11797

PostForum: Off-Topic Discussions   Posted: Fri May 08, 2009 1:12 am   Subject: Electricity
well... naturally some of it is the american stuff i had recently acquired that i put there for size comparison since i assumed you would roughly know the basic switches and their sizes...
it'd also ...
Topic: Electricity
rv

Replies: 18
Views: 11797

PostForum: Off-Topic Discussions   Posted: Thu May 07, 2009 12:17 pm   Subject: Electricity
the order of things is a mess... but i put together a flickr group of pictures

there it is:
http://www.flickr.com/groups/1110467@N23/pool/

hope you find it interesting
Topic: Electricity
rv

Replies: 18
Views: 11797

PostForum: Off-Topic Discussions   Posted: Thu May 07, 2009 1:22 am   Subject: Electricity
hello

i was going to post some images yesterday... but have been busy helping people (i am visiting my old hometown and a lot of ppl needed my help with various things)

i will try and post a few ...
Topic: Electricity
rv

Replies: 18
Views: 11797

PostForum: Off-Topic Discussions   Posted: Mon May 04, 2009 4:41 am   Subject: Electricity
yes... i've read something about split phase method in america to get 230 volts out of 2x115 phases 180° apart... here sometimes electricity is two out of three phases 120°apart... then each line is r ...
Topic: Electricity
rv

Replies: 18
Views: 11797

PostForum: Off-Topic Discussions   Posted: Sun May 03, 2009 1:40 pm   Subject: Electricity
and I'm sure that even though the base was in another country, it was just wired with standard switches for familiarity and 115VAC/60Hz to allow soldiers to bring their own stuff from home without usi ...
 

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