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Archive for the ‘Various’ Category

June 5th, 2010 Comments off
Categories: Apple, Gallery, Projects / Repairs, Retro Computers and other stuff..., Today, Various

May 9th, 2010 1 comment
Categories: Acorn family, Gallery, Projects / Repairs, Retro Computers and other stuff..., Today, Various

March 20th, 2010 Comments off
Categories: Commodore CBM/PET family, Gallery, Projects / Repairs, Retro Computers and other stuff..., Today, Various

March 13th, 2010 2 comments
Categories: Amstrad family, Gallery, Projects / Repairs, Retro Computers and other stuff..., Schneider, Today, Various

March 12th, 2010 Comments off
Categories: Amstrad family, Gallery, Projects / Repairs, Retro Computers and other stuff..., Schneider, Today, Various

March 10th, 2010 3 comments
Categories: Apple, Gallery, Projects / Repairs, Retro Computers and other stuff..., Today, Various

February 13th, 2010 Comments off
Categories: Amstrad family, Gallery, Projects / Repairs, Retro Computers and other stuff..., Schneider, Today, Various

January 24th, 2010 Comments off
Categories: Projects / Repairs, Today, Various

January 21st, 2010 Comments off
Categories: Gallery, Projects / Repairs, Retro Computers and other stuff..., Sinclair family, Today, Various

November 6th, 2009 Comments off
Categories: Atari family, Gallery, Projects / Repairs, Retro Computers and other stuff..., Today, Various

Atari ST replace Epson broken Floppy Drive with a Teac FD235 HF

October 25th, 2009 No comments
TEAC FD235 HF

Teac Floppy Drive and some games Screenshots:

source: atari4ever

Categories: Atari family, Gallery, Projects / Repairs, Retro Computers and other stuff..., Teac, Today, Various

August 31st, 2009 1 comment
Categories: Commodore CBM/PET family, Gallery, News & Rumors, Projects / Repairs, Retro Computers and other stuff..., Today, Various

ZX Spectrum +3 (Issue 1) Sound Fix *updated*

August 22nd, 2009 2 comments

Sound fix diagram here. (pdf)

from Cristian Secară Homepage:

The first release (the +3) has a fatal hardware mistake: the 128K sound output is completely distorted.

  • Tech explanation: the analog output of the AY-3-8912 sound chip was intended to be amplified by a one stage common-emitter transistor. In practice, they have forgot to put a resistor to the transistor’s emitter. The result: the transistor works in switch-mode – the sound is converted from analog multi-level amplitude to digitized two-level amplitude, same as the old 48K sound system.

source: secarica.ro ay8912 Demos

Categories: Gallery, Projects / Repairs, Retro Computers and other stuff..., Sinclair family, Today, Various

June 14th, 2009 16 comments
Categories: CBS Coleco Vision, Gallery, Projects / Repairs, Retro Computers and other stuff..., Today, Various

May 10th, 2009 3 comments
Categories: Arcade Supergun, Gallery, Projects / Repairs, Retro Computers and other stuff..., Today, Various