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BitWrangler.uk

Maker and tinkerer in retro-computers, electronics, micro controllers and software

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BitWrangler.uk

Category: Retro Computers

Projects related to 80’s / 90’s retro computers

Atari 2600 jr being wash

Atari 2600 Jnr #2 (pt2 – wash and composite mod)

August 24, 2021 Gordon Pimblott Atari, Retro Computers

In part 1, I mostly ignored the Atari console as I honestly believed that it was not worth the trouble.[…]

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Atari 2600 Jnr #2 (pt1 – Testing & joysticks)

August 22, 2021 Gordon Pimblott Atari, Retro Computers

Retro gamers will know that all joysticks are not the same; different consoles use different pin-outs – despite having the[…]

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Atari 2600 Jnr composite mod

Atari 2600 Jnr #1 (Pt 2 – composite mod)

August 12, 2021 Gordon Pimblott Atari, Retro Computers

In part 1 I cleaned and repaired my Atari 2600 Jnr; the result looked really good but it still needed[…]

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C64 motherboard

C64 with Flickering Video

July 24, 2021 Gordon Pimblott Commodore 64, Retro Computers

Having been a Spectrum owner back in the day I never experienced the C64, but have watched numerous being fixed[…]

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C64 Diagnostics Cards

July 16, 2021 Gordon Pimblott Commodore 64, Electronics, Projects, Retro Computers

Diagnostics cards are an essential weapon in the retro fixers toolkit. I have quite a few different diagnostics cards for[…]

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Spectrum Demo board

Naked Spectrum

July 10, 2021 Gordon Pimblott Electronics, Projects, Retro Computers, ZX Spectrum

While fixing previous spectrums I bought a cheap motherboard in poor condition to use for spares. I knew it was[…]

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Dandanator mini PCB

Building a Dandanator mini

July 10, 2021 Gordon Pimblott Electronics, Projects, Retro Computers, ZX Spectrum

The Dandanator mini is an expansion card for the ZX Spectrum that enables fast ROM/game loading from a pre-programmed EEPROM.[…]

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2114 SRAM Tester

July 7, 2021 Gordon Pimblott Electronics, Projects, Retro Computers, ZX81

On the 40th Anniversary of the ZX81 I retrieved mine from the shelf in my office and plugged it in[…]

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Z80 Processor tester

Z80 Processor tester

July 7, 2021 Gordon Pimblott Electronics, Projects, Retro Computers, ZX Spectrum

The Z80 processor is a classic micro-processor. Originally designed in the 1970’s variants are still in production, and widely available[…]

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Atari 2600 Jnr #1 (Pt 1)

June 26, 2021 Gordon Pimblott Atari, Retro Computers

Before getting my first ‘proper’ computer I remember having a TV console to play games on. If my memory is[…]

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Recent Posts

  • BBC Micro #3 (Caps, sound and colour)
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  • BBC micro #1 (Power supply recapping)
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