Register
Help
Remember Me?
What's new?
Forum
New Posts
FAQ
Calendar
Community
Groups
Albums
Member List
Forum Actions
Mark Forums Read
Quick Links
Today's Posts
View Site Leaders
Blogs
Articles
Advanced Search
Member List
jdreesen
If this is your first visit, be sure to check out the
FAQ
by clicking the link above. You may have to
register
before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.
jdreesen
Senior Member
Find latest posts
Find latest started threads
View Articles
View Blog Entries
Mini Statistics
Join Date
July 5th, 2012
Last Activity
Today
11:55 AM
Blog Entries
0
Recent Visitors
The last 10 visitor(s) to this page were:
AmiA
,
classcmp
,
compaqportableplus
,
deramp5113
,
ErikC64
,
Maggi#9295
,
nikola-wan
,
Slob
,
stanleyruppert
,
theslownorris
This page has had
8,388
visits
Tab Content
jdreesen's Activity
About Me
Tab Content
All
jdreesen
Friends
Photos
New Activity (
)
Please reload this page to view the 200+ new activity items that have been created.
Older Activity
March 2nd, 2021,
05:18 AM
jdreesen
replied to a thread
Tektronix 4907 Floppy Drive
in
Other
Monty, that does seem to make sense, after hand-disassembly. Although I cannot claim to understand the code yet....
see more
27 replies | 3042 view(s)
March 1st, 2021,
02:00 AM
jdreesen
replied to a thread
Tektronix 4907 Floppy Drive
in
Other
The patches do indeed overrule the code inside the non-patched ROM's. But there is a catch : there is nothing to stop these patches from regularly...
see more
27 replies | 3042 view(s)
February 28th, 2021,
12:18 PM
jdreesen
replied to a thread
Tektronix 4907 Floppy Drive
in
Other
Was trying to disassemble the complete 4907 firmware, but ran into a problem : The patch rom data is missing... that is because the patch rom...
see more
27 replies | 3042 view(s)
February 22nd, 2021,
11:28 PM
jdreesen
replied to a thread
Lisa 2/10 floppy and hard drive replacements?
in
Later Apple (68000+ based machines - Mac, Lisa, etc.)
I can also vouch for the IDEFile. Well executed, I use mine to boot all known ( to me..) OS on my Lisa 2/10 These are Lisa office 3.1, , Lisa...
see more
23 replies | 431 view(s)
February 21st, 2021,
07:51 AM
jdreesen
replied to a thread
Tek 405x web-browser emulator
in
Other
These are just I/O devices at cartridge address 41 . Equations, from the Diag Pack PAL, are : ; WLED write to status LEDs /WLED = /BSR *...
see more
264 replies | 31777 view(s)
February 21st, 2021,
03:48 AM
jdreesen
replied to a thread
TransEra 764-RAM Auxiliary Memory for Tektronix 4052/4054 Computers
in
Other
So, while functional, the first version of the PCB had too many issues to leave it at that. So an updated design was made & tested. This time I am...
see more
20 replies | 1972 view(s)
February 15th, 2021,
10:44 PM
jdreesen
replied to a thread
Digital GiGi VK100 colour graphics terminal
in
DEC
I did use ReGIS on a VT240 terminal back in the day to show projected 3D graphics / diagrams of simulation results. It was a simple protocol, so...
see more
12 replies | 543 view(s)
February 9th, 2021,
11:26 PM
jdreesen
replied to a thread
Tektronix 4041 computer from the early 1980's - WORKING!!
in
Other
In the US that might be the case. Never seen one on this side of the pond...and after shipping & import duties that US-based device becomes 600...
see more
32 replies | 4466 view(s)
More Activity
No More Results
No Recent Activity
About jdreesen
Basic Information
About jdreesen
Location:
Switzerland
Occupation:
Engineer
Statistics
Total Posts
Total Posts
176
Posts Per Day
0.06
General Information
Last Activity
Today
11:55 AM
Join Date
July 5th, 2012
Referrals
0
Find latest posts
View Articles
View Blog Entries