MicroDigital TK-83 – RF (PAL-M) to Composite NTSC
The composite video mod for the computer Microdigital TK-83 unlike the Sinclair ZX81 it’s more easier.
You no need to install the usual transistor with 1 or 2 resistors / capacitor. The transistor is already installed on the motherboard of the Microdigital TK-83, so just pick up the video signal as described in the picture.
I remind you that the output signal will be in NTSC standard for the Microdigital TK-83 produced in Brazil (PAL-M)
How, for the love of Osiris, HOW did you manage to get one of these? They’re impossible to find even here in Brazil!
Just an amend to the blog: PAL-M is the very same as NTSC, just the chroma signal is PAL. Since all ZX81 & clones produce only black and white image there is no conversion between standards.
@rkauer
Yes, you are absolutely right.