ZX Spectrim 128 +3 composite video output and drive belt replacement

Did some work on ZX Spectrum 128 +3 I have. One thing was I wanted to make it work with small "TFT Color monitor" (for a car rear view). This monitor has a composite video input. First I tried using CSYNK and GND signals for a composite video input. You get the video but it was terrible quality. It seems that "The 128 ZX Spectrums including the +3 (and +2A, +2B) have audio sound modulated onto the video, which reduces the clarity of the composite signal that is available at the modulator input."(1). Then I found this document - "Video fixes and video cables for all ZX Spectrum 128K models". There is a chapter on Creating composite video-out on a +2A / +2B / +3: "Although the ZX Spectrum 128K heat sink model and the grey ZX Spectrum +2 have a composite video-out signal on pin 1 of the RGB connector, the ZX Spectrum +2A, +2B and +3 are missing this feature. Instead of the composite video signal they have a dangerous 12V on pin 1 that will seriously damage your TV or monitor! But you can add the composite video signal yourself, with the same fairly simple circuit as that…


The Shallows: What the Internet Is Doing to Our Brains

Recently have finished this book. From the times of Plato and Aristotle our brain and way of thinking is changing and adapting to our way of living. Every tool we use becomes a part of us, but also we become a part of a tool we use. Clock, written word, computers, world wide web. Everything we use changes us, changes how we think, changes how we remember things. Its a good read that raises a lot of interesting topics.


Replacing MasterFan MF120L with an beQuiet Silent Wings 3 fans

Recently was playing with the fan configurations to make my PC super quiet on idle. Noticed that biggest rattling sound comes from Master Liquid radiator fans even on low RPM. Decided to change them. Some googling led me to beQuiet Silent Wings 3 fans - Virtually inaudible operation at max. 15.5dB(A) 6-pole fan motor for less power consumption and vibration Fluid-dynamic bearing enables super-long life span of 300,000h Fan frame with funnel-shaped air inlets for extremely high air pressure After replacement, You can instantly tell than Master Wings 3 are almost inaudible comparing to stock Master Fan MF120L. And MF120L is just a garbage with an RGB led on it.


Track Data Changes (SQL Server)

Works for SQL Server starting with 2008. Enable change data capture for a database: EXEC sys.sp_cdc_enable_db GO Check if it is enabled: SELECT [name], database_id, is_cdc_enabled   FROM sys.databases WHERE is_cdc_enabled = 1 GO Enable change data capture for a table: EXEC sys.sp_cdc_enable_table @source_schema = N'dbo', @source_name= N'MyTable', @role_name= NULL, @filegroup_name = N'CDC', @supports_net_changes = 0 GO Check if table is tracked: SELECT [name], is_tracked_by_cdc   FROM sys.tables WHERE is_tracked_by_cdc=1 GO Select changes: select * from [cdc].SchemaName_SourceTableName_CT Cleanup tracked changes: EXECUTE sys.sp_cdc_change_job     @job_type = N'cleanup',     @retention = 2880;  


Open command prompt from any folders context menu

There are many tools that can do that for You, but it easy to make it yourself. When a user right-clicks a Shell object such as a file, the Shell displays a shortcut (context) menu. This menu contains a list of commands that the user can select to perform various actions on the item. These commands are also known as shortcut menu items or verbs. Shortcut menus can be customized. What you have to do is just add some registry entry in [HKEY_CLASSES_ROOT\Folder\shell\. All entries here are responsible for what menus to show when you press right menu button and open context menu for a folder. Command cmd.exe /K \"cd /d %1\"" will open command prompt and navigate to current folder (%1 will by replaced by folder name You are opening context menu automatically ) More on this here. Save this to any .reg file and execute it: Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\Folder\shell\CMD\command] @="C:\\Windows\\System32\\cmd.exe /K \"cd /d %1\""


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