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I am TSB

Retro computer, repairs, electronics, coding

Author: TSB

23 August 202029 November 2023 TSB bL0g Polivoks, repair, synthesizer

Polivoks repair

Polivoks repair

This article is about a repair I did back in 2014 on a Polivoks (Polivox) synthesizer. I came across some files on

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23 August 20207 November 2023 TSB bL0g alesis, sr-16, sr161 Comment on Alesis SR-16 – Not working

Alesis SR-16 – Not working

Alesis SR-16 – Not working

Got a Alesis SR-16 Drum computer from a friend of mine. The machine didn’t work, it only show 8 blocks on the

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19 August 20205 June 2025 TSB bL0g

Sinclair SPJ-1 Joystick Axis Sliders

Sinclair SPJ-1 Joystick Axis Sliders

Got a Sinclair SPJ-1 Joystick for repair. One of the inner axis was broken, so designed a new one because I couldn’t

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1 July 20207 November 2023 TSB bL0g amiga, amiga 1200, cia, ciaa, failure, timer, u79 Comments on A1200 CIA timer failure

A1200 CIA timer failure

A1200 CIA timer failure

A1200 with timer failure on CIA-A (u7) with amiga test kit (ATK). Removed CIA (U7) Placed PLCC44 socket and new CIA Result..

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31 May 202029 November 2023 TSB bL0g a500, amiga 500, fat agnus, green screen

Amiga 500 rev 6A – Green boot screen

Amiga 500 rev 6A – Green boot screen

I have an Amiga 500 revision 6A, with a green boot screen. I suspected Fat Agnus, so I replace it. After the

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