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Roland Huisman
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Roland Huisman
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March 24th, 2011
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Yesterday,
01:24 AM
Roland Huisman
replied to a thread
Intellec MCS-8 8008 boards
in
Other
I got a message of the seller that he found back the original Intel 8008 programming card. So he sent it to me for free :D But it surprises me that...
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8 replies | 483 view(s)
March 2nd, 2021,
11:00 AM
Roland Huisman
replied to a thread
What did I do to my PDP-8 today.
in
DEC
The transformer is a constant voltage model. It has a quite big air gap. That capacitor saturates the core which is limiting/regulating the output...
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229 replies | 16011 view(s)
February 23rd, 2021,
12:47 PM
Roland Huisman
replied to a thread
Proper Linux for Compaq Proliant 2500
in
Pentium (First generation)
Thanks a lot for all the tips and suggestions! I will try to get it up and running. All the batteries on the RAID card are still okay but I had to...
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9 replies | 325 view(s)
February 23rd, 2021,
10:17 AM
Roland Huisman
replied to a thread
RX01 floppy drive adventures
in
DEC
I think DEC made several modifications to these drives. I have seen very interesting modifications to the RK05 drives as well... Cooling was one of...
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40 replies | 2063 view(s)
February 20th, 2021,
03:07 PM
Roland Huisman
started a thread
Proper Linux for Compaq Proliant 2500
in
Pentium (First generation)
In the late nineties I've installed several Compaq Proliant machines at the University where I worked back then. Because of the warm memories I...
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9 replies | 325 view(s)
February 19th, 2021,
08:34 AM
Roland Huisman
replied to a thread
Digital GiGi VK100 colour graphics terminal
in
DEC
To be honest, I was wondering if it is worth the effort to edit the firmware which supports Tektronix data. But I think the source is not...
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12 replies | 540 view(s)
February 17th, 2021,
01:13 PM
Roland Huisman
replied to a thread
Flip-Chip sell off
in
DEC
The last 8KW core stack which I bought on Ebay was June last year, 200 Dollar and I was the only bidder... Isn't that strange? I don't have a clue...
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7 replies | 535 view(s)
February 15th, 2021,
11:35 AM
Roland Huisman
started a thread
Digital GiGi VK100 colour graphics terminal
in
DEC
Hello everyone, It seems there is a broken VK100 / GiGi terminal waiting for me to repair. But I had never heard about a GiGi before... The...
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12 replies | 540 view(s)
February 15th, 2021,
09:24 AM
Roland Huisman
replied to a thread
RX01 floppy drive adventures
in
DEC
This is the reason why I use a primary RX controller at address 75 and a secondary controller at address 76. On 75 I have the RX emulator with an SD...
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40 replies | 2063 view(s)
February 13th, 2021,
12:43 AM
Roland Huisman
replied to a thread
RX01 floppy drive adventures
in
DEC
Hi Tom, These voltages are fine. The +5V TTL will drop a bit under load when you connect the boards. The -5V is used for the opamps. A bit higher...
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40 replies | 2063 view(s)
February 5th, 2021,
08:57 AM
Roland Huisman
replied to a thread
VT320 - Replace CRT with LCD?
in
DEC
Hi Tom, The last company which I knew about to rebuilt CRTs was RACS in France. I had a CRT from the thirties with an open heater. They repaired...
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17 replies | 960 view(s)
February 5th, 2021,
04:01 AM
Roland Huisman
replied to a thread
VT320 - Replace CRT with LCD?
in
DEC
Too bad that I don't have a VT320 here, I really would like to figure out where the real problem is. I have years of experience with...
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17 replies | 960 view(s)
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About Roland Huisman
Basic Information
About Roland Huisman
Location:
The Netherlands
Interests:
Old technology like Radio, TV, VCR and computing.
Occupation:
Electronics engineer
Signature
WTB: Case for Altair 8800
......
Rolands Github projects
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1,040
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Last Activity
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06:44 AM
Join Date
March 24th, 2011
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