Making ZX Spectrum edge connector

If You are a little bit into retro computing and would like to experiment with ZX Spectrum computer outputs or make some extension board for it for some prototyping, then you need ZX Spectrum edge connector ( if we talk about original ZX Spectrums ). It is easy to make one by Yourself, just buy some regular 28x2P 56P 2.54mm 0.1″ edge connectors on ebay and saw off both ends of it so they could be used for ZX Spectrum, done.

Repairing ZX Spectrum Kempston joystick

As recently I started tinkering with ZX Spectrum hardware, tested one old joystick I had. Up and right positions did not work during the games. Tested port reading with one simple program:

10 LET x=IN 31
20 PRINT X
30 GOTO 10

There was no reading in up and right position.
I took apart joystick case and tested connection between PCB and plug – there was no connection for up and right wires.

So, just took now DB9 female connector and soldered it instead of an old one that I have just cut away.