Just a heads-up: My next shipping day will be Tuesday 19th Jan 2021 (I have to catch up on some admin etc!) Cheers, Phil

Mods for the ZX81

Products:

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Heatsink adhesive 6g Tube

Small Tube Of Thermally Conductive Adhesive

  • For attaching heatsinks to chips
  • 5 gram tube - more than enough for several chips
  • Instructions supplied
Price: £ 1.25   Add to cart. (7 in stock)
Heatsink for 40 pin DIL Chips - Bare

Heatsink for 40 Pin DIL Chips - Bare

  • Heatsink suitable for 40 PIN Chips such as the CPU in the Commodore 64 and ULA in ZX81 and Spectrum Plus. (Note: There is not enough room for it in the rubber-keyed Spectrum unless you desolder the ULA's IC socket and fit the ULA directly onto the motherboard.) 
  • Dimensions: 50mm x 19mm x 4.8mm
  • Attachment methods: The heatsink is not self-adhesive - it requires thermally conductive glue which I sell separately.
Price: £ 1.50   Add to cart. (20 in stock)
Heatsink for 40 pin DIL Chips - Self Adhesive

Heatsink for 40 Pin DIL Chips - Self Adhesive

  • As above, but with thermally-conductive self-adhesive pad pre-attached, ready to peel and apply.
Price: £ 1.90   Add to cart. (15 in stock)