Skip to content

BitWrangler.uk

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

  • Calculators
  • Retro Computers
    • Acorn Electron
    • Atari
    • Commodore 64
    • ZX81
    • ZX Spectrum
  • Projects
    • Electronics
BitWrangler.uk

Category: Retro Computers

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

Sinclair Calculator

Sinclair Cambridge (1973)

May 20, 2021 Gordon Pimblott Calculators

My first Sinclair calculator to add to the collection, a Sinclair Cambridge from 1973, as with most things from Ebay[…]

Read more
Acorn Electron

My First Electron (1983)

May 20, 2021 Gordon Pimblott Acorn Electron, Retro Computers

In my younger days I was lucky enough to own a BBC B Microcomputer (to give it its full name)[…]

Read more
Sinclair Oxford 200 Calculator

Sinclair Oxford 200 (1975)

May 20, 2021 Gordon Pimblott Calculators

The latest addition to my Sinclair collection is a Sinclair Oxford 200 v1 from 1975. It wasn’t in too bad[…]

Read more
ZX Spectrum plus

ZX Spectrum+ (1984)

October 23, 2020 Gordon Pimblott Retro Computers, ZX Spectrum

After the well known ‘rubber keyed’ Spectrum came the ZX Spectrum+.  I never encountered one during my childhood, probably because[…]

Read more

Spectrum finishing touches (part 4)

September 23, 2020 Gordon Pimblott Retro Computers, ZX Spectrum

With both Spectrum’s working I decided on a few upgrades before calling it a day.  Both of the cover plates[…]

Read more
Lower ram replaced with sockets

Fixing the Issue 2 Spectrum (part 3)

September 23, 2020 Gordon Pimblott Retro Computers, ZX Spectrum

On first inspection the Issue 2 showed a picture with the typical Spectrum coloured border and some flashing bars in[…]

Read more
Upper memory faults

Fixing the Issue 4 Spectrum (part 2)

September 23, 2020 Gordon Pimblott Retro Computers, ZX Spectrum

After checking the power rails it was obvious that the 5v regulator wasn’t working, so first action was to replace[…]

Read more
Two 48K ZX Spectrums

A tale of two Spectrums (Part 1)

September 23, 2020 Gordon Pimblott Retro Computers, ZX Spectrum

Over the last couple of months I have been watching YouTube channels of people fixing various retro computers, mainly Commodore[…]

Read more
ZX81

My First ZX 81 (1981)

September 20, 2020 Gordon Pimblott Retro Computers, ZX81

I started my computing with a ZX Spectrum 48k.  I never really noticed the ZX80/81 and I don’t remember any[…]

Read more

Posts navigation

«Previous Posts 1 2 3

Recent Posts

  • BBC Micro #3 (Caps, sound and colour)
  • BBC micro #2 (SD game loader)
  • BBC micro #1 (Power supply recapping)
  • Laptop panel recycled as Retro computer display
  • Atari 7800 composite mod
  • C64C Refurbishment

Categories

  • Projects
    • Electronics
  • Retro Computers
    • Acorn Electron
    • Atari
    • BBC micro
    • Calculators
    • Commodore 64
    • ZX Spectrum
    • ZX81

Archives

  • June 2022
  • March 2022
  • February 2022
  • January 2022
  • November 2021
  • September 2021
  • August 2021
  • July 2021
  • June 2021
  • May 2021
  • October 2020
  • September 2020

Links

  • Privacy policy
WordPress Theme: Poseidon by ThemeZee.