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MicroDigital TK-83 – RF (PAL-M) to Composite NTSC

August 25th, 2013 3 comments

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)

August 24th, 2013 Comments off

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August 11th, 2013 4 comments

July 31st, 2013 1 comment

July 26th, 2013 Comments off

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July 20th, 2013 7 comments

July 14th, 2013 1 comment

July 1st, 2013 1 comment

June 28th, 2013 Comments off

June 22nd, 2013 34 comments

June 9th, 2013 Comments off

A large donation of Z80 (CPU/CTC) and TTL 74XXX Series

June 7th, 2013 No comments

Today a friend, that i thank him immensely, gave me a large amount of chips.

The donation amounts to:

  • 70+ Z80 CPU.
  • 14+ Z80 CTC (Counter / Timer Channels)
  • 200+ 74XXX TTL chips.