ZX Spectrum 128K

Resources

Wiki
Video fixes and video cables for all ZX Spectrum 128K models
Top 80 Games for 128K

For attaching ZX Spectrum 128K to SD card storage, WiFi and PC please consult ZX Spectrum 48 page.

Internals

The big radiator which distinguishes 128K from its predecessors is attached to a popular 7805 voltage regulator used to reduce 9V from the power supply to 5V needed by the electronics. This regulator can fail often, for example when you mix the polarity of the power supply, but it is easily replaceable with a new part.

Power supply is 9V DC with ground in the center. This is similar as in case of ZX Spectrum+ and ZX Spectrum 48, but the one I have with 128K is rated at 1.85A. Not sure if this is really needed though.

 

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s