
Good old Timex 2048 (ZX Spectrum 48 clone)
Here are some photos of Timex 2048 microcomputer, just for reference. I am selling my old friend and I wanted to document the PCB. You never know when it comes in handy.
And, as a side effect, you can find two very simple hacks for TIMEX 2048 below.
Here is how you can connect an external speaker. It really gives sound quality boost when compared to the original one:
Attachment:
zx_speaker.jpg
The picture below shows where to connect 4.5V battery for RAM content sustaining. With the battery connected, you can power off the machine without loosing any data in RAM, thus making it somewhat mobile

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Attachment:
zx_battery.jpg