The Sinclair QL Forum

Unfortunately another community has been subjected to an attack. Both Lemon 64 (for Commodore 64 machines) and Lemon Amiga are down.

On the Spectrum Computing forum , PROSM says:

According to lifeschool over on the English Amiga Board , both Lemon sites have been hacked: SQL injection, LA and ...

The off load voltages are misleading. The PSU is not regulated, so the voltages will be higher than you expect when not supplying the full rated current.

Mark

The pin details of a 7805 are well documented. See this site for example

Mark

The 'dot' indicates pin 1 which is the input (the nominal 9V from the PSU).
The middle pin (pin 2) is 0V/GND
The remaining pin (pin 3) is the +5V output.

Datasheet here

Mark

Oh, it definitely does matter which way it's connected!

Mark

The maximum current rating can be higher (within reason) but not lower.

If buying on a trading site, use a seller from your own country that has a good reputation or buy a known brand that has a good reputation.

Stay clear of low quality imports from the far east, as often these completely ignore ...

dilwyn wrote: Mon Dec 25, 2023 5:58 pm 3D printed Sinclair computer miniatures, including ZX80, ZX81, QL, various Spectrums, joystick and cassettes. No microdrives sadly, but my son clearly knows how much I enjoy my Sinclairs!IMG_20231225_175225205~3.jpg

Where's the LIKE button when you need it

Mark

A very merry Christmas to all members

‘Tis the day to devour a pagan feast. I say to all, enjoy your day!

Mark

Welcome to the QL universe

Mark

Welcome to the year that in future will be known as two thousand and twenty two

Best wishes to all QL fans

Mark